diff --git a/test/addons/non-node-context/test-make-buffer.js b/test/addons/non-node-context/test-make-buffer.js
index 344ea973d76..26458137b05 100644
--- a/test/addons/non-node-context/test-make-buffer.js
+++ b/test/addons/non-node-context/test-make-buffer.js
@@ -6,7 +6,7 @@ const {
   makeBufferInNewContext,
 } = require(`./build/${common.buildType}/binding`);
 
-// Because the `Buffer` function and its protoype property only (currently)
+// Because the `Buffer` function and its prototype property only (currently)
 // exist in a Node.js instance’s main context, trying to create buffers from
 // another context throws an exception.
 assert.throws(
diff --git a/test/addons/openssl-providers/providers.cjs b/test/addons/openssl-providers/providers.cjs
index 901ea5041ba..2dabbf020e2 100644
--- a/test/addons/openssl-providers/providers.cjs
+++ b/test/addons/openssl-providers/providers.cjs
@@ -13,7 +13,7 @@ const { getProviders } = require(`./build/${common.buildType}/binding`);
 
 // For the providers defined here, the expectation is that the listed ciphers
 // and hash algorithms are only provided by the named provider. These are for
-// basic checks and are not intended to list evey cipher or hash algorithm
+// basic checks and are not intended to list every cipher or hash algorithm
 // supported by the provider.
 const providers = {
   'default': {
diff --git a/test/common/report.js b/test/common/report.js
index 6e415611865..6fce96590c3 100644
--- a/test/common/report.js
+++ b/test/common/report.js
@@ -251,7 +251,7 @@ function _validateContent(report, fields = []) {
   assert(typeof usage.free_memory, 'string');
   assert(typeof usage.total_memory, 'string');
   assert(typeof usage.available_memory, 'string');
-  // This field may not exsit
+  // This field may not exist
   if (report.resourceUsage.constrained_memory) {
     assert(typeof report.resourceUsage.constrained_memory, 'string');
   }
diff --git a/test/es-module/test-wasm-web-api.js b/test/es-module/test-wasm-web-api.js
index d4a81794f80..b199393a18c 100644
--- a/test/es-module/test-wasm-web-api.js
+++ b/test/es-module/test-wasm-web-api.js
@@ -173,7 +173,7 @@ function testCompileStreamingRejectionUsingFetch(responseCallback, rejection) {
              "'application/octet-stream'"
   });
 
-  // HTTP status code indiciating an error.
+  // HTTP status code indicating an error.
   await testCompileStreamingRejectionUsingFetch((res) => {
     res.statusCode = 418;
     res.setHeader('Content-Type', 'application/wasm');
@@ -184,7 +184,7 @@ function testCompileStreamingRejectionUsingFetch(responseCallback, rejection) {
     message: /^WebAssembly response has status code 418$/
   });
 
-  // HTTP status code indiciating an error, but using a Response whose body is
+  // HTTP status code indicating an error, but using a Response whose body is
   // a Buffer instead of calling fetch().
   await testCompileStreamingSuccess(() => {
     return Promise.resolve(new Response(simpleWasmBytes, {
diff --git a/test/fixtures/snapshot/marked.js b/test/fixtures/snapshot/marked.js
index b72d59461b8..d29b18ba1f9 100644
--- a/test/fixtures/snapshot/marked.js
+++ b/test/fixtures/snapshot/marked.js
@@ -617,7 +617,7 @@
           } else {
             indent = cap[2].search(/[^ ]/); // Find first non-space char
 
-            indent = cap[1].length + (indent > 4 ? 1 : indent); // intented code blocks after 4 spaces; indent is always 1
+            indent = cap[1].length + (indent > 4 ? 1 : indent); // indented code blocks after 4 spaces; indent is always 1
 
             itemContents = lines[0].slice(indent - cap[1].length);
           }
diff --git a/test/fixtures/test-runner/coverage-loader/hooks.mjs b/test/fixtures/test-runner/coverage-loader/hooks.mjs
index c2e4b1dfc94..57ee712ed97 100644
--- a/test/fixtures/test-runner/coverage-loader/hooks.mjs
+++ b/test/fixtures/test-runner/coverage-loader/hooks.mjs
@@ -1,5 +1,5 @@
 const sources = {
-// Virtual file. Dosen't exist on disk
+// Virtual file. Doesn't exist on disk
   "virtual.js": `
   import { test } from 'node:test';
   test('test', async () => {});
diff --git a/test/fixtures/wpt/FileAPI/support/send-file-form-helper.js b/test/fixtures/wpt/FileAPI/support/send-file-form-helper.js
index d6adf21ec33..39c73c41b42 100644
--- a/test/fixtures/wpt/FileAPI/support/send-file-form-helper.js
+++ b/test/fixtures/wpt/FileAPI/support/send-file-form-helper.js
@@ -180,7 +180,7 @@ const formPostFileUploadTest = ({
 
     // Used to verify that the browser agrees with the test about
     // field value replacement and encoding independently of file system
-    // idiosyncracies.
+    // idiosyncrasies.
     form.append(Object.assign(document.createElement('input'), {
       type: 'hidden',
       name: 'filename',
diff --git a/test/fixtures/wpt/FileAPI/support/send-file-formdata-helper.js b/test/fixtures/wpt/FileAPI/support/send-file-formdata-helper.js
index 53c8cca7e09..dd62a0e98e9 100644
--- a/test/fixtures/wpt/FileAPI/support/send-file-formdata-helper.js
+++ b/test/fixtures/wpt/FileAPI/support/send-file-formdata-helper.js
@@ -34,7 +34,7 @@ const formDataPostFileUploadTest = ({
 
     // Used to verify that the browser agrees with the test about
     // field value replacement and encoding independently of file system
-    // idiosyncracies.
+    // idiosyncrasies.
     formData.append("filename", fileBaseName);
 
     // Same, but with name and value reversed to ensure field names
diff --git a/test/fixtures/wpt/dom/events/scrolling/overscroll-event-fired-to-window.html b/test/fixtures/wpt/dom/events/scrolling/overscroll-event-fired-to-window.html
index ef5ae3daef8..348dadcb4c5 100644
--- a/test/fixtures/wpt/dom/events/scrolling/overscroll-event-fired-to-window.html
+++ b/test/fixtures/wpt/dom/events/scrolling/overscroll-event-fired-to-window.html
@@ -31,7 +31,7 @@ var window_received_overscroll = false;
 
 function onOverscroll(event) {
   assert_false(event.cancelable);
-  // overscroll events targetting document are bubbled to the window.
+  // overscroll events targeting document are bubbled to the window.
   assert_true(event.bubbles);
   window_received_overscroll = true;
 }
diff --git a/test/fixtures/wpt/dom/events/scrolling/scroll_support.js b/test/fixtures/wpt/dom/events/scrolling/scroll_support.js
index a708364df07..3d7709772ba 100644
--- a/test/fixtures/wpt/dom/events/scrolling/scroll_support.js
+++ b/test/fixtures/wpt/dom/events/scrolling/scroll_support.js
@@ -88,7 +88,7 @@ const MAX_UNCHANGED_FRAMES = 20;
 function waitFor(condition, error_message = 'Reaches the maximum frames.') {
   return new Promise((resolve, reject) => {
     function tick(frames) {
-      // We requestAnimationFrame either for MAX_FRAM frames or until condition
+      // We requestAnimationFrame either for MAX_FRAME frames or until condition
       // is met.
       if (frames >= MAX_FRAME)
         reject(error_message);
diff --git a/test/fixtures/wpt/resource-timing/cached-image-gets-single-entry.html b/test/fixtures/wpt/resource-timing/cached-image-gets-single-entry.html
index 2d8c4e2e839..bf71615f7b1 100644
--- a/test/fixtures/wpt/resource-timing/cached-image-gets-single-entry.html
+++ b/test/fixtures/wpt/resource-timing/cached-image-gets-single-entry.html
@@ -14,7 +14,7 @@
 <p>Test that a reused resource only appears in the buffer once.</p>
 <script>
 // Need our own image loading helper because the one in resource-loaders.js
-// is desgined to always side-step the HTTP cache but this test relies on the
+// is designed to always side-step the HTTP cache but this test relies on the
 // second request being resolved from the cache.
 const load_image = path => new Promise(resolve => {
   const img = document.createElement('img');
diff --git a/test/fixtures/wpt/resource-timing/initiator-type/link.html b/test/fixtures/wpt/resource-timing/initiator-type/link.html
index c49576a8e65..759964d8384 100644
--- a/test/fixtures/wpt/resource-timing/initiator-type/link.html
+++ b/test/fixtures/wpt/resource-timing/initiator-type/link.html
@@ -22,7 +22,7 @@
 <script>
   initiator_type_test("nested.css", "link", "<link>");
 
-  // Verify there are enries for each of nested.css' nested resources.
+  // Verify there are entries for each of nested.css' nested resources.
   initiator_type_test("resource_timing_test0.css?id=n1", "css", "css resources embedded in css");
   initiator_type_test("fonts/Ahem.ttf?id=n1", "css", "font resources embedded in css");
   initiator_type_test("blue.png?id=n1", "css", "image resources embedded in css");
diff --git a/test/fixtures/wpt/resources/channel.sub.js b/test/fixtures/wpt/resources/channel.sub.js
index 370d4f5905e..d93b3b30919 100644
--- a/test/fixtures/wpt/resources/channel.sub.js
+++ b/test/fixtures/wpt/resources/channel.sub.js
@@ -511,7 +511,7 @@
          *
          * @param {SendChannel|string} [dest] - Either a SendChannel
          * to the destination, or the UUID of the destination. If
-         * ommitted, a new UUID is generated, which can be used when
+         * omitted, a new UUID is generated, which can be used when
          * constructing the URL for the global.
          *
          */
diff --git a/test/fixtures/wpt/resources/idlharness.js b/test/fixtures/wpt/resources/idlharness.js
index 8f741b09b26..056fcdd4a10 100644
--- a/test/fixtures/wpt/resources/idlharness.js
+++ b/test/fixtures/wpt/resources/idlharness.js
@@ -809,7 +809,7 @@ IdlArray.prototype.merge_partials = function()
         {
             // Special-case "Exposed". Must be a subset of original interface's exposure.
             // Exposed on a partial is the equivalent of having the same Exposed on all nested members.
-            // See https://github.com/heycam/webidl/issues/154 for discrepency between Exposed and
+            // See https://github.com/heycam/webidl/issues/154 for discrepancy between Exposed and
             // other extended attributes on partial interfaces.
             const exposureAttr = parsed_idl.extAttrs.find(a => a.name === "Exposed");
             if (exposureAttr) {
diff --git a/test/fixtures/wpt/resources/testdriver-actions.js b/test/fixtures/wpt/resources/testdriver-actions.js
index 3e5ba74b4ca..e550ff0b1dc 100644
--- a/test/fixtures/wpt/resources/testdriver-actions.js
+++ b/test/fixtures/wpt/resources/testdriver-actions.js
@@ -32,7 +32,7 @@
    * await actions.send();
    *
    * @param {number} [defaultTickDuration] - The default duration of a
-   * tick. Be default this is set ot 16ms, which is one frame time
+   * tick. Be default this is set to 16ms, which is one frame time
    * based on 60Hz display.
    */
   function Actions(defaultTickDuration=16) {
diff --git a/test/fixtures/wpt/resources/testharness.js b/test/fixtures/wpt/resources/testharness.js
index 497ae23f0e8..126ae96423b 100644
--- a/test/fixtures/wpt/resources/testharness.js
+++ b/test/fixtures/wpt/resources/testharness.js
@@ -600,7 +600,7 @@
 
     /**
      * @callback TestFunction
-     * @param {Test} test - The test currnetly being run.
+     * @param {Test} test - The test currently being run.
      * @param {Any[]} args - Additional args to pass to function.
      *
      */
diff --git a/test/fixtures/wpt/user-timing/measure-exceptions.html b/test/fixtures/wpt/user-timing/measure-exceptions.html
index 2836eaee2a8..e89d2685891 100644
--- a/test/fixtures/wpt/user-timing/measure-exceptions.html
+++ b/test/fixtures/wpt/user-timing/measure-exceptions.html
@@ -35,7 +35,7 @@
 
     const args = [
         51.15,  // Verify that number is parsed as string, not number.
-        "DoesNotExist", // Non-existant mark name should cause error.
+        "DoesNotExist", // Non-existent mark name should cause error.
     ];
     args.forEach(each => {
         test(()=>{
diff --git a/test/fixtures/wpt/webmessaging/broadcastchannel/workers.html b/test/fixtures/wpt/webmessaging/broadcastchannel/workers.html
index 8b55492f3cf..62fa31f623c 100644
--- a/test/fixtures/wpt/webmessaging/broadcastchannel/workers.html
+++ b/test/fixtures/wpt/webmessaging/broadcastchannel/workers.html
@@ -256,7 +256,7 @@ function postMessageToWorkerWorkerCode(workerName, channelName) {
       // Since the worker has closed, it's not expected that the
       // BroadcastChannel will receive messages (there's a separate test for
       // that), so just indicate directly that it's ready to test receiving
-      // a message from the parent dispite the possibility of a race condition.
+      // a message from the parent despite the possibility of a race condition.
       postMessage('ready');
     }
   });
diff --git a/test/fixtures/wpt/webstorage/localstorage-about-blank-3P-iframe-opens-3P-window.partitioned.tentative.html b/test/fixtures/wpt/webstorage/localstorage-about-blank-3P-iframe-opens-3P-window.partitioned.tentative.html
index de94fb2cf43..a474a8c0de3 100644
--- a/test/fixtures/wpt/webstorage/localstorage-about-blank-3P-iframe-opens-3P-window.partitioned.tentative.html
+++ b/test/fixtures/wpt/webstorage/localstorage-about-blank-3P-iframe-opens-3P-window.partitioned.tentative.html
@@ -57,7 +57,7 @@ promise_test(async t => {
       for (let id in ids) {
         assert_true(id !== undefined, "id is not undefined");
       }
-      // Note: we use assert_true, rather than assert_equals becuase we're
+      // Note: we use assert_true, rather than assert_equals because we're
       // setting random numbers as IDs - this would mean expectations
       // files wouldn't work as intended.
       assert_true(crossSiteIframeAboutBlankID !== crossSiteIframeID,
diff --git a/test/internet/test-uv-threadpool-schedule.js b/test/internet/test-uv-threadpool-schedule.js
index 9e61d875f20..33ddf7fa3f0 100644
--- a/test/internet/test-uv-threadpool-schedule.js
+++ b/test/internet/test-uv-threadpool-schedule.js
@@ -1,6 +1,6 @@
 'use strict';
 
-// Test to validate massive dns lookups do not block filesytem I/O
+// Test to validate massive dns lookups do not block filesystem I/O
 // (or any fast I/O). Prior to https://github.com/libuv/libuv/pull/1845
 // few back-to-back dns lookups were sufficient to engage libuv
 // threadpool workers in a blocking manner, throttling other work items
diff --git a/test/js-native-api/test_function/test_function.c b/test/js-native-api/test_function/test_function.c
index 02a2988dc3e..2b53df68d4f 100644
--- a/test/js-native-api/test_function/test_function.c
+++ b/test/js-native-api/test_function/test_function.c
@@ -146,7 +146,7 @@ static napi_value TestBadReturnExceptionPending(napi_env env, napi_callback_info
   // exception occurs, but we have seen that the C++ wrapper
   // with exceptions enabled sometimes returns an invalid value
   // when an exception is thrown. Test that we ignore the return
-  // value then an exeption is pending. We use 0xFFFFFFFF as a value
+  // value then an exception is pending. We use 0xFFFFFFFF as a value
   // that should never be a valid napi_value and node seems to
   // crash if it is not ignored indicating that it is indeed invalid.
   return (napi_value)(0xFFFFFFFFF);
diff --git a/test/js-native-api/test_object/test_object.c b/test/js-native-api/test_object/test_object.c
index b9b3e5c90ae..6d74128118f 100644
--- a/test/js-native-api/test_object/test_object.c
+++ b/test/js-native-api/test_object/test_object.c
@@ -656,7 +656,7 @@ TypeTaggedInstance(napi_env env, napi_callback_info info) {
   return instance;
 }
 
-// V8 will not allowe us to construct an external with a NULL data value.
+// V8 will not allow us to construct an external with a NULL data value.
 #define IN_LIEU_OF_NULL ((void*)0x1)
 
 static napi_value PlainExternal(napi_env env, napi_callback_info info) {
diff --git a/test/js-native-api/test_reference/test.js b/test/js-native-api/test_reference/test.js
index 34a1ac70ede..6ef84009ea0 100644
--- a/test/js-native-api/test_reference/test.js
+++ b/test/js-native-api/test_reference/test.js
@@ -142,7 +142,7 @@ runTests();
 // reference (there is a finalizer behind the scenes even
 // though it cannot be passed to napi_create_reference).
 //
-// Since the order is not guarranteed, run the
+// Since the order is not guaranteed, run the
 // test a number of times maximize the chance that we
 // get a run with the desired order for the test.
 //
diff --git a/test/node-api/test_init_order/test_init_order.cc b/test/node-api/test_init_order/test_init_order.cc
index fc4174c09d8..6d76c3d4c0b 100644
--- a/test/node-api/test_init_order/test_init_order.cc
+++ b/test/node-api/test_init_order/test_init_order.cc
@@ -12,7 +12,7 @@ namespace {
 // In production code developers must avoid dynamic static initializers because
 // they affect the start up time. They must prefer static initialization such as
 // use of constexpr functions or classes with constexpr constructors. E.g.
-// instead of using std::string, it is preferrable to use const char[], or
+// instead of using std::string, it is preferable to use const char[], or
 // constexpr std::string_view starting with C++17, or even constexpr
 // std::string starting with C++20.
 struct MyClass {
diff --git a/test/node-api/test_instance_data/test_instance_data.c b/test/node-api/test_instance_data/test_instance_data.c
index ef79e3c52b7..3ae4836ceba 100644
--- a/test/node-api/test_instance_data/test_instance_data.c
+++ b/test/node-api/test_instance_data/test_instance_data.c
@@ -139,7 +139,7 @@ static void FinalizeThreadsafeFunction(napi_env env, void* raw, void* hint) {
   data->tsfn = NULL;
 }
 
-// Ths function accepts two arguments: the JS callback, and the finalize
+// This function accepts two arguments: the JS callback, and the finalize
 // callback. The latter moves the test forward.
 static napi_value
 TestThreadsafeFunction(napi_env env, napi_callback_info info) {
diff --git a/test/parallel/parallel.status b/test/parallel/parallel.status
index 43db3e8926c..2f94923799b 100644
--- a/test/parallel/parallel.status
+++ b/test/parallel/parallel.status
@@ -18,7 +18,7 @@ test-fs-read-stream-concurrent-reads: PASS, FLAKY
 
 # Until V8 provides a better way to check for flag mismatch without
 # making the code cache/snapshot unreproducible, disable the test
-# for a preemptive check now. It should idealy fail more gracefully
+# for a preemptive check now. It should ideally fail more gracefully
 # with a better checking mechanism.
 # https://github.com/nodejs/build/issues/3043
 test-snapshot-incompatible: SKIP
diff --git a/test/parallel/test-blob-file-backed.js b/test/parallel/test-blob-file-backed.js
index 2e143e6936f..6e919d2982f 100644
--- a/test/parallel/test-blob-file-backed.js
+++ b/test/parallel/test-blob-file-backed.js
@@ -134,7 +134,7 @@ writeFileSync(testfile5, '');
 })().then(common.mustCall());
 
 (async () => {
-  // We currently do not allow File-backed blobs to be cloned or transfered
+  // We currently do not allow File-backed blobs to be cloned or transferred
   // across worker threads. This is largely because the underlying FdEntry
   // is bound to the Environment/Realm under which is was created.
   const blob = await openAsBlob(__filename);
diff --git a/test/parallel/test-cli-options-negation.js b/test/parallel/test-cli-options-negation.js
index bfbee635ab1..a5ac456d256 100644
--- a/test/parallel/test-cli-options-negation.js
+++ b/test/parallel/test-cli-options-negation.js
@@ -21,7 +21,7 @@ assert(spawnWithFlags(['--no-max-http-header-size']).stderr.toString().includes(
   'a boolean option',
 ));
 
-// Inexistant flags cannot be negated.
+// Inexistent flags cannot be negated.
 assert(spawnWithFlags(['--no-i-dont-exist']).stderr.toString().includes(
   'bad option: --no-i-dont-exist',
 ));
diff --git a/test/parallel/test-compile-cache-api-tmpdir.js b/test/parallel/test-compile-cache-api-tmpdir.js
index 3014be594b9..e676893b01f 100644
--- a/test/parallel/test-compile-cache-api-tmpdir.js
+++ b/test/parallel/test-compile-cache-api-tmpdir.js
@@ -1,7 +1,7 @@
 'use strict';
 
 // This tests module.enableCompileCache() and module.getCompileCacheDir() work with
-// the TMPDIR environemnt variable override.
+// the TMPDIR environment variable override.
 
 require('../common');
 const { spawnSyncAndAssert } = require('../common/child_process');
diff --git a/test/parallel/test-crypto-x509.js b/test/parallel/test-crypto-x509.js
index 28fbf308e2d..15e1f53bb05 100644
--- a/test/parallel/test-crypto-x509.js
+++ b/test/parallel/test-crypto-x509.js
@@ -366,7 +366,7 @@ UcXd/5qu2GhokrKU2cPttU+XAN2Om6a0
   // Test date parsing of `validFromDate` and `validToDate` fields, according to RFC 5280.
 
   // Validity dates up until the year 2049 are encoded as UTCTime.
-  // The fomatting of UTCTime changes from the year ~1949 to 1950~.
+  // The formatting of UTCTime changes from the year ~1949 to 1950~.
   const certPemUTCTime = `-----BEGIN CERTIFICATE-----
 MIIE/TCCAuWgAwIBAgIUHbXPaFnjeBehMvdHkXZ+E3a78QswDQYJKoZIhvcNAQEL
 BQAwDTELMAkGA1UEBhMCS1IwIBgPMTk0OTEyMjUyMzU5NThaFw01MDAxMDEyMzU5
diff --git a/test/parallel/test-fs-watch-recursive-update-file.js b/test/parallel/test-fs-watch-recursive-update-file.js
index 7100b015ab2..e27a4c37e4f 100644
--- a/test/parallel/test-fs-watch-recursive-update-file.js
+++ b/test/parallel/test-fs-watch-recursive-update-file.js
@@ -31,7 +31,7 @@ fs.writeFileSync(testFile, 'hello');
 
 const watcher = fs.watch(testDirectory, { recursive: true });
 watcher.on('change', common.mustCallAtLeast(function(event, filename) {
-  // Libuv inconsistenly emits a rename event for the file we are watching
+  // Libuv inconsistently emits a rename event for the file we are watching
   assert.ok(event === 'change' || event === 'rename');
 
   if (filename === path.basename(testFile)) {
diff --git a/test/parallel/test-inspector-break-when-eval.js b/test/parallel/test-inspector-break-when-eval.js
index d5170706a07..6fc76acd840 100644
--- a/test/parallel/test-inspector-break-when-eval.js
+++ b/test/parallel/test-inspector-break-when-eval.js
@@ -66,7 +66,7 @@ async function stepOverConsoleStatement(session) {
 }
 
 async function runTests() {
-  // NOTE(mmarchini): Use --inspect-brk to improve avoid undeterministic
+  // NOTE(mmarchini): Use --inspect-brk to improve avoid indeterministic
   // behavior.
   const child = new NodeInstance(['--inspect-brk=0'], undefined, script);
   const session = await child.connectInspectorSession();
diff --git a/test/parallel/test-net-listen-twice.js b/test/parallel/test-net-listen-twice.js
index f3e3f1475b5..5a2399ea217 100644
--- a/test/parallel/test-net-listen-twice.js
+++ b/test/parallel/test-net-listen-twice.js
@@ -14,7 +14,7 @@ if (cluster.isPrimary) {
   server.listen();
   try {
     // Currently, we can call `listen` twice in cluster worker,
-    // if we can not call `listen` twice in the futrue,
+    // if we can not call `listen` twice in the future,
     // just skip this test.
     server.listen();
   } catch (e) {
diff --git a/test/parallel/test-net-pipe-with-long-path.js b/test/parallel/test-net-pipe-with-long-path.js
index 38e020f6698..cebafd60285 100644
--- a/test/parallel/test-net-pipe-with-long-path.js
+++ b/test/parallel/test-net-pipe-with-long-path.js
@@ -20,7 +20,7 @@ const server = net.createServer()
   .listen(pipePath)
   // It may work on some operating systems
   .on('listening', () => {
-    // The socket file must exsit
+    // The socket file must exist
     assert.ok(fs.existsSync(pipePath));
     const socket = net.connect(pipePath, common.mustCall(() => {
       socket.destroy();
diff --git a/test/parallel/test-unhandled-exception-with-worker-inuse.js b/test/parallel/test-unhandled-exception-with-worker-inuse.js
index a3e823ca70b..47c220245d5 100644
--- a/test/parallel/test-unhandled-exception-with-worker-inuse.js
+++ b/test/parallel/test-unhandled-exception-with-worker-inuse.js
@@ -10,7 +10,7 @@ const common = require('../common');
 //
 // The root cause of this issue is that before PerIsolateMessageListener()
 // is invoked by v8, v8 preserves the JS vm state, although it should
-// switch to EXTERNEL. https://bugs.chromium.org/p/v8/issues/detail?id=13464
+// switch to EXTERNAL. https://bugs.chromium.org/p/v8/issues/detail?id=13464
 //
 // Therefore, this commit can be considered as an workaround of the v8 bug,
 // but we also find it not useful to call SetIdle() when terminating.
diff --git a/test/parallel/test-url-relative.js b/test/parallel/test-url-relative.js
index 9dfe954c1fe..2751ec3b512 100644
--- a/test/parallel/test-url-relative.js
+++ b/test/parallel/test-url-relative.js
@@ -346,7 +346,7 @@ const relativeTests2 = [
    'file:///C:/DEV/Haskell/lib/HXmlToolbox-3.01/examples/mini1.xml'],
   ['../b/c', 'foo:a/y/z', 'foo:a/b/c'],
 
-  // changeing auth
+  // changing auth
   ['http://diff:auth@www.example.com',
    'http://asdf:qwer@www.example.com',
    'http://diff:auth@www.example.com/'],
diff --git a/test/parallel/test-v8-query-objects.js b/test/parallel/test-v8-query-objects.js
index ea2b99f727f..8e9616b2f5a 100644
--- a/test/parallel/test-v8-query-objects.js
+++ b/test/parallel/test-v8-query-objects.js
@@ -50,7 +50,7 @@ common.expectWarning(
   class TestV8QueryObjectsChildClass extends TestV8QueryObjectsBaseClass {}
   const summary = v8.queryObjects(TestV8QueryObjectsBaseClass, { format: 'summary' });
   // TestV8QueryObjectsChildClass's prototype's [[Prototype]] slot is
-  // TestV8QueryObjectsBaseClass's prototoype so it shows up in the query.
+  // TestV8QueryObjectsBaseClass's prototype so it shows up in the query.
   assert.deepStrictEqual(summary, [
     format(TestV8QueryObjectsChildClass.prototype),
   ]);
diff --git a/test/parallel/test-worker-message-port-transfer-duplicate.js b/test/parallel/test-worker-message-port-transfer-duplicate.js
index c893556d8d2..ad0a2d8aca1 100644
--- a/test/parallel/test-worker-message-port-transfer-duplicate.js
+++ b/test/parallel/test-worker-message-port-transfer-duplicate.js
@@ -3,7 +3,7 @@ const common = require('../common');
 const assert = require('assert');
 const { MessageChannel } = require('worker_threads');
 
-// Test that passing duplicate transferrables in the transfer list throws
+// Test that passing duplicate transferables in the transfer list throws
 // DataCloneError exceptions.
 
 {
diff --git a/test/parallel/test-worker-message-port-wasm-threads.js b/test/parallel/test-worker-message-port-wasm-threads.js
index 4174a8951e9..fe70261fd7b 100644
--- a/test/parallel/test-worker-message-port-wasm-threads.js
+++ b/test/parallel/test-worker-message-port-wasm-threads.js
@@ -3,7 +3,7 @@ const common = require('../common');
 const assert = require('assert');
 const { MessageChannel, Worker } = require('worker_threads');
 
-// Test that SharedArrayBuffer instances created from WASM are transferrable
+// Test that SharedArrayBuffer instances created from WASM are transferable
 // through MessageChannels (without crashing).
 
 const fixtures = require('../common/fixtures');
diff --git a/test/sequential/test-error-serdes.js b/test/sequential/test-error-serdes.js
index bced9cf40b7..4f834cfc960 100644
--- a/test/sequential/test-error-serdes.js
+++ b/test/sequential/test-error-serdes.js
@@ -83,7 +83,7 @@ assert.strictEqual(Object.hasOwn(cycle(errorWithCyclicCause), 'cause'), true);
 assert.deepStrictEqual(cycle(new ErrorWithCause('Error with cause')).cause, new Error('err'));
 assert.strictEqual(cycle(new ErrorWithThowingCause('Error with cause')).cause, undefined);
 assert.strictEqual(Object.hasOwn(cycle(new ErrorWithThowingCause('Error with cause')), 'cause'), false);
-// When the cause is cyclic, it is serialized until Maxiumum call stack size is reached
+// When the cause is cyclic, it is serialized until Maximum call stack size is reached
 let depth = 0;
 let e = cycle(new ErrorWithCyclicCause('Error with cause'));
 while (e.cause) {
diff --git a/test/sequential/test-performance-eventloopdelay.js b/test/sequential/test-performance-eventloopdelay.js
index 24e5744118c..0bc1758113e 100644
--- a/test/sequential/test-performance-eventloopdelay.js
+++ b/test/sequential/test-performance-eventloopdelay.js
@@ -101,5 +101,5 @@ const { sleep } = require('internal/util');
 }
 
 // Make sure that the histogram instances can be garbage-collected without
-// and not just implictly destroyed when the Environment is torn down.
+// and not just implicitly destroyed when the Environment is torn down.
 process.on('exit', global.gc);
diff --git a/test/sequential/test-worker-eventlooputil.js b/test/sequential/test-worker-eventlooputil.js
index 55a3995c3d1..396902915e1 100644
--- a/test/sequential/test-worker-eventlooputil.js
+++ b/test/sequential/test-worker-eventlooputil.js
@@ -62,7 +62,7 @@ let workerELU;
   metricsCh.port2.once('message', mustCall(checkWorkerIdle));
   metricsCh.port2.postMessage({ cmd: 'elu' });
   // Make sure it's still safe to call eventLoopUtilization() after the worker
-  // hass been closed.
+  // has been closed.
   worker.on('exit', mustCall(() => {
     assert.deepStrictEqual(worker.performance.eventLoopUtilization(),
                            { idle: 0, active: 0, utilization: 0 });
diff --git a/test/sequential/test-worker-prof.js b/test/sequential/test-worker-prof.js
index b98b0be953b..8c3d91e6c4c 100644
--- a/test/sequential/test-worker-prof.js
+++ b/test/sequential/test-worker-prof.js
@@ -76,7 +76,7 @@ if (process.argv[2] === 'child') {
   console.log('parent ticks', parentTicks.length);
   // When not tracking Worker threads, only 1 or 2 ticks would
   // have been recorded.
-  // prof_sampling_interval is by default 1 millsecond. A higher NODE_TEST_SPIN_MS
+  // prof_sampling_interval is by default 1 millisecond. A higher NODE_TEST_SPIN_MS
   // should result in more ticks, while 15 should be safe on most machines.
   assert(workerTicks.length > 15, `worker ticks <= 15:\n${workerTicks.join('\n')}`);
   assert(parentTicks.length > 15, `parent ticks <= 15:\n${parentTicks.join('\n')}`);