diff --git a/test/fixtures/wpt/fetch/api/idlharness.https.any.js b/test/fixtures/wpt/fetch/api/idlharness.https.any.js
new file mode 100644
index 000000000000..7b3c694e16ac
--- /dev/null
+++ b/test/fixtures/wpt/fetch/api/idlharness.https.any.js
@@ -0,0 +1,21 @@
+// META: global=window,worker
+// META: script=/resources/WebIDLParser.js
+// META: script=/resources/idlharness.js
+// META: timeout=long
+
+idl_test(
+  ['fetch'],
+  ['referrer-policy', 'html', 'dom'],
+  idl_array => {
+    idl_array.add_objects({
+      Headers: ["new Headers()"],
+      Request: ["new Request('about:blank')"],
+      Response: ["new Response()"],
+    });
+    if (self.GLOBAL.isWindow()) {
+      idl_array.add_objects({ Window: ['window'] });
+    } else if (self.GLOBAL.isWorker()) {
+      idl_array.add_objects({ WorkerGlobalScope: ['self'] });
+    }
+  }
+);
diff --git a/test/fixtures/wpt/interfaces/fetch.idl b/test/fixtures/wpt/interfaces/fetch.idl
new file mode 100644
index 000000000000..29056f1bf099
--- /dev/null
+++ b/test/fixtures/wpt/interfaces/fetch.idl
@@ -0,0 +1,133 @@
+// GENERATED CONTENT - DO NOT EDIT
+// Content was automatically extracted by Reffy into webref
+// (https://github.com/w3c/webref)
+// Source: Fetch Standard (https://fetch.spec.whatwg.org/)
+
+typedef (sequence<sequence<ByteString>> or record<ByteString, ByteString>) HeadersInit;
+
+[Exposed=(Window,Worker)]
+interface Headers {
+  constructor(optional HeadersInit init);
+
+  undefined append(ByteString name, ByteString value);
+  undefined delete(ByteString name);
+  ByteString? get(ByteString name);
+  sequence<ByteString> getSetCookie();
+  boolean has(ByteString name);
+  undefined set(ByteString name, ByteString value);
+  iterable<ByteString, ByteString>;
+};
+
+typedef (Blob or BufferSource or FormData or URLSearchParams or USVString) XMLHttpRequestBodyInit;
+
+typedef (ReadableStream or XMLHttpRequestBodyInit) BodyInit;
+interface mixin Body {
+  readonly attribute ReadableStream? body;
+  readonly attribute boolean bodyUsed;
+  [NewObject] Promise<ArrayBuffer> arrayBuffer();
+  [NewObject] Promise<Blob> blob();
+  [NewObject] Promise<Uint8Array> bytes();
+  [NewObject] Promise<FormData> formData();
+  [NewObject] Promise<any> json();
+  [NewObject] Promise<USVString> text();
+  [NewObject] ReadableStream textStream();
+};
+typedef (Request or USVString) RequestInfo;
+
+[Exposed=(Window,Worker)]
+interface Request {
+  constructor(RequestInfo input, optional RequestInit init = {});
+
+  readonly attribute ByteString method;
+  readonly attribute USVString url;
+  [SameObject] readonly attribute Headers headers;
+
+  readonly attribute RequestDestination destination;
+  readonly attribute USVString referrer;
+  readonly attribute ReferrerPolicy referrerPolicy;
+  readonly attribute RequestMode mode;
+  readonly attribute RequestCredentials credentials;
+  readonly attribute RequestCache cache;
+  readonly attribute RequestRedirect redirect;
+  readonly attribute DOMString integrity;
+  readonly attribute boolean keepalive;
+  readonly attribute boolean isReloadNavigation;
+  readonly attribute boolean isHistoryNavigation;
+  readonly attribute AbortSignal signal;
+  readonly attribute RequestDuplex duplex;
+
+  [NewObject] Request clone();
+};
+Request includes Body;
+
+dictionary RequestInit {
+  ByteString method;
+  HeadersInit headers;
+  BodyInit? body;
+  USVString referrer;
+  ReferrerPolicy referrerPolicy;
+  RequestMode mode;
+  RequestCredentials credentials;
+  RequestCache cache;
+  RequestRedirect redirect;
+  DOMString integrity;
+  boolean keepalive;
+  AbortSignal? signal;
+  RequestDuplex duplex;
+  RequestPriority priority;
+  any window; // can only be set to null
+};
+
+enum RequestDestination { "", "audio", "audioworklet", "document", "embed", "font", "frame", "iframe", "image", "json", "manifest", "object", "paintworklet", "report", "script", "sharedworker", "style", "text", "track", "video", "worker", "xslt" };
+enum RequestMode { "navigate", "same-origin", "no-cors", "cors" };
+enum RequestCredentials { "omit", "same-origin", "include" };
+enum RequestCache { "default", "no-store", "reload", "no-cache", "force-cache", "only-if-cached" };
+enum RequestRedirect { "follow", "error", "manual" };
+enum RequestDuplex { "half" };
+enum RequestPriority { "high", "low", "auto" };
+
+[Exposed=(Window,Worker)]
+interface Response {
+  constructor(optional BodyInit? body = null, optional ResponseInit init = {});
+
+  [NewObject] static Response error();
+  [NewObject] static Response redirect(USVString url, optional unsigned short status = 302);
+  [NewObject] static Response json(any data, optional ResponseInit init = {});
+
+  readonly attribute ResponseType type;
+
+  readonly attribute USVString url;
+  readonly attribute boolean redirected;
+  readonly attribute unsigned short status;
+  readonly attribute boolean ok;
+  readonly attribute ByteString statusText;
+  [SameObject] readonly attribute Headers headers;
+
+  [NewObject] Response clone();
+};
+Response includes Body;
+
+dictionary ResponseInit {
+  unsigned short status = 200;
+  ByteString statusText = "";
+  HeadersInit headers;
+};
+
+enum ResponseType { "basic", "cors", "default", "error", "opaque", "opaqueredirect" };
+
+partial interface mixin WindowOrWorkerGlobalScope {
+  [NewObject] Promise<Response> fetch(RequestInfo input, optional RequestInit init = {});
+};
+
+dictionary DeferredRequestInit : RequestInit {
+  DOMHighResTimeStamp activateAfter;
+};
+
+[Exposed=Window]
+interface FetchLaterResult {
+  readonly attribute boolean activated;
+};
+
+partial interface Window {
+  [NewObject, SecureContext] FetchLaterResult fetchLater(RequestInfo input, optional DeferredRequestInit init = {});
+};
diff --git a/test/fixtures/wpt/interfaces/referrer-policy.idl b/test/fixtures/wpt/interfaces/referrer-policy.idl
new file mode 100644
index 000000000000..0ef9a1fdecc8
--- /dev/null
+++ b/test/fixtures/wpt/interfaces/referrer-policy.idl
@@ -0,0 +1,16 @@
+// GENERATED CONTENT - DO NOT EDIT
+// Content was automatically extracted by Reffy into webref
+// (https://github.com/w3c/webref)
+// Source: Referrer Policy (https://w3c.github.io/webappsec-referrer-policy/)
+
+enum ReferrerPolicy {
+  "",
+  "no-referrer",
+  "no-referrer-when-downgrade",
+  "same-origin",
+  "origin",
+  "strict-origin",
+  "origin-when-cross-origin",
+  "strict-origin-when-cross-origin",
+  "unsafe-url"
+};
diff --git a/test/fixtures/wpt/versions.json b/test/fixtures/wpt/versions.json
index 711d469cc367..e3665894bf81 100644
--- a/test/fixtures/wpt/versions.json
+++ b/test/fixtures/wpt/versions.json
@@ -23,6 +23,10 @@
     "commit": "1ac8deee082ecfb5d3b6f9c56cf9d1688a2fc218",
     "path": "encoding"
   },
+  "fetch/api": {
+    "commit": "3f15e5c09448b8e917c9128d3b07cc78f044c83a",
+    "path": "fetch/api"
+  },
   "fetch/data-urls/resources": {
     "commit": "7c79d998ff42e52de90290cb847d1b515b3b58f7",
     "path": "fetch/data-urls/resources"
diff --git a/test/wpt/status/fetch/api.json b/test/wpt/status/fetch/api.json
new file mode 100644
index 000000000000..271dd10d8cc1
--- /dev/null
+++ b/test/wpt/status/fetch/api.json
@@ -0,0 +1,25 @@
+{
+  "idlharness.https.any.html": {
+    "fail": {
+      "note": "fetchLater() and FetchLaterResult are not implemented",
+      "expected": [
+        "FetchLaterResult interface: existence and properties of interface object",
+        "FetchLaterResult interface object length",
+        "FetchLaterResult interface object name",
+        "FetchLaterResult interface: existence and properties of interface prototype object",
+        "FetchLaterResult interface: existence and properties of interface prototype object's \"constructor\" property",
+        "FetchLaterResult interface: existence and properties of interface prototype object's @@unscopables property",
+        "FetchLaterResult interface: attribute activated",
+        "Window interface: operation fetchLater(RequestInfo, optional DeferredRequestInit)"
+      ]
+    }
+  },
+  "idlharness.https.any.worker.html": {
+    "fail": {
+      "note": "fetch is an own property of the worker global, not of WorkerGlobalScope.prototype",
+      "expected": [
+        "WorkerGlobalScope interface: operation fetch(RequestInfo, optional RequestInit)"
+      ]
+    }
+  }
+}
diff --git a/test/wpt/test-fetch.js b/test/wpt/test-fetch.js
new file mode 100644
index 000000000000..5cf803f82980
--- /dev/null
+++ b/test/wpt/test-fetch.js
@@ -0,0 +1,13 @@
+'use strict';
+
+const { WPTRunner } = require('../common/wpt');
+
+const runner = new WPTRunner('fetch/api');
+
+runner.pretendGlobalThisAs('Window');
+// The window harness does not define GLOBAL.isWorker(). The idlharness
+// setup calls it when isWindow() is false.
+runner.setInitScript(
+  'globalThis.GLOBAL.isWorker = function() { return false; };',
+);
+runner.runJsTests();