diff --git a/core/extension/extension_api_dump.cpp b/core/extension/extension_api_dump.cpp
index 4d7d82e118..06e7a990d2 100644
--- a/core/extension/extension_api_dump.cpp
+++ b/core/extension/extension_api_dump.cpp
@@ -1182,6 +1182,10 @@ Dictionary GDExtensionAPIDump::generate_extension_api(bool p_include_docs) {
 				List<MethodInfo> signal_list;
 				ClassDB::get_signal_list(class_name, &signal_list, true);
 				for (const MethodInfo &F : signal_list) {
+					if (F.name.begins_with("_")) {
+						continue; // Hidden signal.
+					}
+
 					StringName signal_name = F.name;
 					Dictionary d2;
 					d2["name"] = String(signal_name);
diff --git a/modules/mono/editor/bindings_generator.cpp b/modules/mono/editor/bindings_generator.cpp
index afa944f8eb..056f77f69d 100644
--- a/modules/mono/editor/bindings_generator.cpp
+++ b/modules/mono/editor/bindings_generator.cpp
@@ -4263,6 +4263,11 @@ bool BindingsGenerator::_populate_object_type_interfaces() {
 
 			const MethodInfo &method_info = E.value;
 
+			if (method_info.name.begins_with("_")) {
+				// Signals starting with an underscore are internal and not meant to be exposed.
+				continue;
+			}
+
 			isignal.name = method_info.name;
 			isignal.cname = method_info.name;