diff --git a/src/wp-includes/revision.php b/src/wp-includes/revision.php
index 9d3ca6f424..5433d0a5ce 100644
--- a/src/wp-includes/revision.php
+++ b/src/wp-includes/revision.php
@@ -200,6 +200,35 @@ function wp_save_post_revision( $post_id ) {
 
 	$revisions = wp_get_post_revisions( $post_id, array( 'order' => 'ASC' ) );
 
+	/**
+	 * Filters the revisions to be considered for deletion.
+	 *
+	 * @since 6.2.0
+	 *
+	 * @param WP_Post[]|int[] $revisions Array of revision objects or IDs,
+	 *                                   or an empty array if none.
+	 * @param int             $post_id   The ID of the post to save as a revision.
+	 */
+	$filtered_revisions = apply_filters(
+		'wp_save_post_revision_revisions_before_deletion',
+		$revisions,
+		$post_id
+	);
+
+	if ( is_array( $filtered_revisions ) ) {
+		$revisions = $filtered_revisions;
+	} else {
+		_doing_it_wrong(
+			__FUNCTION__,
+			sprintf(
+				/* translators: %s: The filter name. */
+				__( 'The "%s" filter should return an array.' ),
+				'wp_save_post_revision_revisions_before_deletion'
+			),
+			'6.2.0'
+		);
+	}
+
 	$delete = count( $revisions ) - $revisions_to_keep;
 
 	if ( $delete < 1 ) {
diff --git a/tests/phpunit/tests/post/revisions.php b/tests/phpunit/tests/post/revisions.php
index c8effbccc2..62e3bbef04 100644
--- a/tests/phpunit/tests/post/revisions.php
+++ b/tests/phpunit/tests/post/revisions.php
@@ -866,4 +866,115 @@ class Tests_Post_Revisions extends WP_UnitTestCase {
 
 		add_post_type_support( 'post', 'revisions' );
 	}
+
+	/**
+	 * Tests that wp_save_post_revision() respects the 'wp_save_post_revision_revisions_before_deletion' filter
+	 * when deleting revisions.
+	 *
+	 * This test should protect the original revision, send the rest to be checked against wp_revisions_to_keep(),
+	 * and result in two revisions: The latest revision, and the original.
+	 *
+	 * @ticket 57320
+	 *
+	 * @covers ::wp_save_post_revision
+	 */
+	public function test_wp_save_post_revision_should_respect_revisions_before_deletion_filter() {
+		$post_id = self::factory()->post->create( array( 'post_title' => 'Test 57320' ) );
+
+		add_filter(
+			'wp_revisions_to_keep',
+			static function() {
+				return 1;
+			}
+		);
+
+		add_filter(
+			'wp_save_post_revision_revisions_before_deletion',
+			static function ( $revisions ) {
+				// Ignore the first revision and return the rest for deletion.
+				return array_slice( $revisions, 1 );
+			}
+		);
+
+		for ( $update = 1; $update < 4; ++$update ) {
+			wp_update_post(
+				array(
+					'ID'         => $post_id,
+					'post_title' => 'Test 57320 Update ' . $update,
+				)
+			);
+		}
+
+		$actual = wp_get_post_revisions( $post_id );
+
+		$this->assertCount(
+			2,
+			$actual,
+			'There should be two revisions.'
+		);
+
+		$first  = reset( $actual );
+		$second = next( $actual );
+
+		$this->assertSame(
+			'Test 57320 Update 3',
+			$first->post_title,
+			'The title of the first revision was incorrect.'
+		);
+
+		$this->assertSame(
+			'Test 57320 Update 1',
+			$second->post_title,
+			'The title of the second revision was incorrect.'
+		);
+	}
+
+	/**
+	 * Tests that wp_save_post_revision() ignores an invalid return value
+	 * from the 'wp_save_post_revision_revisions_before_deletion' filter
+	 * and throws _doing_it_wrong().
+	 *
+	 * @ticket 57320
+	 *
+	 * @covers ::wp_save_post_revision
+	 *
+	 * @expectedIncorrectUsage wp_save_post_revision
+	 */
+	public function test_wp_save_post_revision_should_ignore_invalid_revisions_before_deletion_filter() {
+		$post_id = self::factory()->post->create( array( 'post_title' => 'Test 57320' ) );
+
+		add_filter(
+			'wp_revisions_to_keep',
+			static function() {
+				return 1;
+			}
+		);
+
+		add_filter( 'wp_save_post_revision_revisions_before_deletion', '__return_null' );
+
+		for ( $update = 1; $update < 4; ++$update ) {
+			wp_update_post(
+				array(
+					'ID'         => $post_id,
+					'post_title' => 'Test 57320 Update ' . $update,
+				)
+			);
+		}
+
+		$actual = wp_get_post_revisions( $post_id );
+
+		$this->assertCount(
+			1,
+			$actual,
+			'There should only be one revision.'
+		);
+
+		$first = reset( $actual );
+
+		$this->assertSame(
+			'Test 57320 Update 3',
+			$first->post_title,
+			'The title of the first revision was incorrect.'
+		);
+	}
 }