diff --git a/RELEASE-NOTES-1.41 b/RELEASE-NOTES-1.41
index 394e6861276..5db46efb439 100644
--- a/RELEASE-NOTES-1.41
+++ b/RELEASE-NOTES-1.41
@@ -258,6 +258,8 @@ because of Phabricator reports.
   has been removed.
 * MediaWikiServices::getWatchlistNotificationManager(), deprecated in 1.36,
   has been removed.
+* Interface MediaWiki\Hook\ParserTestTablesHook, deprecated in 1.36,
+  has been removed.
 * The NewPagesLineEndingHook now takes NewPagesPager instead of
   SpecialNewpages as first argument.
 * The following methods in the Title class, deprecated since 1.37, have been
diff --git a/autoload.php b/autoload.php
index 9061c081c3b..77bbb05b5e2 100644
--- a/autoload.php
+++ b/autoload.php
@@ -1333,7 +1333,6 @@ $wgAutoloadLocalClasses = [
 	'MediaWiki\\Hook\\ParserOutputPostCacheTransformHook' => __DIR__ . '/includes/parser/Hook/ParserOutputPostCacheTransformHook.php',
 	'MediaWiki\\Hook\\ParserPreSaveTransformCompleteHook' => __DIR__ . '/includes/parser/Hook/ParserPreSaveTransformCompleteHook.php',
 	'MediaWiki\\Hook\\ParserTestGlobalsHook' => __DIR__ . '/includes/Hook/ParserTestGlobalsHook.php',
-	'MediaWiki\\Hook\\ParserTestTablesHook' => __DIR__ . '/includes/Hook/ParserTestTablesHook.php',
 	'MediaWiki\\Hook\\PasswordPoliciesForUserHook' => __DIR__ . '/includes/password/Hook/PasswordPoliciesForUserHook.php',
 	'MediaWiki\\Hook\\PostLoginRedirectHook' => __DIR__ . '/includes/specials/Hook/PostLoginRedirectHook.php',
 	'MediaWiki\\Hook\\PreferencesGetIconHook' => __DIR__ . '/includes/Hook/PreferencesGetIconHook.php',
diff --git a/includes/Hook/ParserTestTablesHook.php b/includes/Hook/ParserTestTablesHook.php
deleted file mode 100644
index b8557900cf1..00000000000
--- a/includes/Hook/ParserTestTablesHook.php
+++ /dev/null
@@ -1,24 +0,0 @@
-<?php
-
-namespace MediaWiki\Hook;
-
-/**
- * This is a hook handler interface, see docs/Hooks.md.
- * Use the hook name "ParserTestTables" to register handlers implementing this interface.
- *
- * @ingroup Hooks
- * @deprecated No longer invoked by MW 1.36+
- */
-interface ParserTestTablesHook {
-	/**
-	 * Use this hook to alter the list of tables to duplicate when parser tests are
-	 * run. Use when page save hooks require the presence of custom tables to ensure
-	 * that tests continue to run properly.
-	 *
-	 * @since 1.35
-	 *
-	 * @param string[] &$tables Array of table names
-	 * @return bool|void True or no return value to continue or false to abort
-	 */
-	public function onParserTestTables( &$tables );
-}
diff --git a/includes/HookContainer/DeprecatedHooks.php b/includes/HookContainer/DeprecatedHooks.php
index f1cae61e37e..a91b2f2167e 100644
--- a/includes/HookContainer/DeprecatedHooks.php
+++ b/includes/HookContainer/DeprecatedHooks.php
@@ -39,7 +39,6 @@ class DeprecatedHooks {
 		'LocalFile::getHistory' => [ 'deprecatedVersion' => '1.37' ],
 		'MagicWordwgVariableIDs' => [ 'deprecatedVersion' => '1.35', 'silent' => true ],
 		'PageContentSave' => [ 'deprecatedVersion' => '1.35', 'silent' => true ],
-		'ParserTestTables' => [ 'deprecatedVersion' => '1.36', 'silent' => true ],
 		'PrefixSearchBackend' => [ 'deprecatedVersion' => '1.27' ],
 		'ProtectionForm::buildForm' => [ 'deprecatedVersion' => '1.36', 'silent' => true ],
 		'RollbackComplete' => [ 'deprecatedVersion' => '1.36', 'silent' => true ],
diff --git a/includes/HookContainer/HookRunner.php b/includes/HookContainer/HookRunner.php
index 930a9e99568..4fcf66775db 100644
--- a/includes/HookContainer/HookRunner.php
+++ b/includes/HookContainer/HookRunner.php
@@ -302,7 +302,6 @@ class HookRunner implements
 	\MediaWiki\Hook\ParserOutputPostCacheTransformHook,
 	\MediaWiki\Hook\ParserPreSaveTransformCompleteHook,
 	\MediaWiki\Hook\ParserTestGlobalsHook,
-	\MediaWiki\Hook\ParserTestTablesHook,
 	\MediaWiki\Hook\PasswordPoliciesForUserHook,
 	\MediaWiki\Hook\PostLoginRedirectHook,
 	\MediaWiki\Hook\PreferencesGetIconHook,
@@ -3052,13 +3051,6 @@ class HookRunner implements
 		);
 	}
 
-	public function onParserTestTables( &$tables ) {
-		return $this->container->run(
-			'ParserTestTables',
-			[ &$tables ]
-		);
-	}
-
 	public function onPasswordPoliciesForUser( $user, &$effectivePolicy ) {
 		return $this->container->run(
 			'PasswordPoliciesForUser',