diff --git a/doc/classes/Window.xml b/doc/classes/Window.xml
index bed40787969..3adc0d367db 100644
--- a/doc/classes/Window.xml
+++ b/doc/classes/Window.xml
@@ -194,6 +194,12 @@
 				See [method Control.get_theme_color] for details.
 			</description>
 		</method>
+		<method name="get_window_id" qualifiers="const">
+			<return type="int" />
+			<description>
+				Returns the ID of the window.
+			</description>
+		</method>
 		<method name="grab_focus">
 			<return type="void" />
 			<description>
diff --git a/scene/main/window.cpp b/scene/main/window.cpp
index e2f9aa8937a..175c2848b4f 100644
--- a/scene/main/window.cpp
+++ b/scene/main/window.cpp
@@ -2478,6 +2478,8 @@ void Window::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_title", "title"), &Window::set_title);
 	ClassDB::bind_method(D_METHOD("get_title"), &Window::get_title);
 
+	ClassDB::bind_method(D_METHOD("get_window_id"), &Window::get_window_id);
+
 	ClassDB::bind_method(D_METHOD("set_initial_position", "initial_position"), &Window::set_initial_position);
 	ClassDB::bind_method(D_METHOD("get_initial_position"), &Window::get_initial_position);