diff --git a/src/wp-includes/rest-api.php b/src/wp-includes/rest-api.php
index c524f9e22a12f..99147bf8338d2 100644
--- a/src/wp-includes/rest-api.php
+++ b/src/wp-includes/rest-api.php
@@ -767,7 +767,7 @@ function rest_handle_deprecated_argument( $function_name, $message, $version ) {
  * @param string|null $version       The version of WordPress where the message was added.
  */
 function rest_handle_doing_it_wrong( $function_name, $message, $version ) {
-	if ( ! WP_DEBUG || headers_sent() ) {
+	if ( ! WP_DEBUG ) {
 		return;
 	}
 
@@ -781,7 +781,22 @@ function rest_handle_doing_it_wrong( $function_name, $message, $version ) {
 		$string = sprintf( $string, $function_name, $message );
 	}
 
-	header( sprintf( 'X-WP-DoingItWrong: %s', $string ) );
+	if ( ! headers_sent() ) {
+		header( sprintf( 'X-WP-DoingItWrong: %s', $string ) );
+	}
+
+	if ( WP_DEBUG_LOG ) {
+		$backtrace = debug_backtrace( DEBUG_BACKTRACE_IGNORE_ARGS );
+		$caller    = '';
+		// Find the first caller outside of WordPress core (plugin or theme).
+		foreach ( $backtrace as $frame ) {
+			if ( isset( $frame['file'] ) && str_contains( $frame['file'], WP_CONTENT_DIR ) ) {
+				$caller = ' in ' . $frame['file'] . ' on line ' . $frame['line'];
+				break;
+			}
+		}
+		error_log( 'PHP Notice: ' . wp_strip_all_tags( $string ) . $caller );
+	}
 }
 
 /**