diff --git a/Userland/Applications/Calendar/CalendarWidget.cpp b/Userland/Applications/Calendar/CalendarWidget.cpp
index bf32d21066..cde18d9dd6 100644
--- a/Userland/Applications/Calendar/CalendarWidget.cpp
+++ b/Userland/Applications/Calendar/CalendarWidget.cpp
@@ -109,6 +109,11 @@ ErrorOr<NonnullRefPtr<CalendarWidget>> CalendarWidget::create(GUI::Window* paren
     view_menu->add_action(*view_month_action);
     view_menu->add_action(*view_year_action);
 
+    view_menu->add_separator();
+    view_menu->add_action(GUI::CommonActions::make_fullscreen_action([&](auto&) {
+        parent_window->set_fullscreen(!parent_window->is_fullscreen());
+    }));
+
     auto help_menu = parent_window->add_menu("&Help"_string);
     help_menu->add_action(GUI::CommonActions::make_command_palette_action(parent_window));
     help_menu->add_action(GUI::CommonActions::make_help_action([](auto&) {
diff --git a/Userland/Applications/PDFViewer/PDFViewerWidget.cpp b/Userland/Applications/PDFViewer/PDFViewerWidget.cpp
index 2b9a95acd2..608f714aa6 100644
--- a/Userland/Applications/PDFViewer/PDFViewerWidget.cpp
+++ b/Userland/Applications/PDFViewer/PDFViewerWidget.cpp
@@ -241,6 +241,11 @@ ErrorOr<void> PDFViewerWidget::initialize_menubar(GUI::Window& window)
     view_menu->add_action(*m_zoom_out_action);
     view_menu->add_action(*m_reset_zoom_action);
 
+    view_menu->add_separator();
+    view_menu->add_action(GUI::CommonActions::make_fullscreen_action([&](auto&) {
+        window.set_fullscreen(!window.is_fullscreen());
+    }));
+
     auto help_menu = window.add_menu("&Help"_string);
     help_menu->add_action(GUI::CommonActions::make_command_palette_action(&window));
     help_menu->add_action(GUI::CommonActions::make_about_action("PDF Viewer"_string, GUI::Icon::default_icon("app-pdf-viewer"sv), &window));
diff --git a/Userland/Applications/Spreadsheet/SpreadsheetWidget.cpp b/Userland/Applications/Spreadsheet/SpreadsheetWidget.cpp
index 4929333615..6aa357d6de 100644
--- a/Userland/Applications/Spreadsheet/SpreadsheetWidget.cpp
+++ b/Userland/Applications/Spreadsheet/SpreadsheetWidget.cpp
@@ -746,6 +746,11 @@ ErrorOr<void> SpreadsheetWidget::initialize_menubar(GUI::Window& window)
     edit_menu->add_action(*m_paste_action);
     edit_menu->add_action(*m_insert_emoji_action);
 
+    auto view_menu = window.add_menu("&View"_string);
+    view_menu->add_action(GUI::CommonActions::make_fullscreen_action([&](auto&) {
+        window.set_fullscreen(!window.is_fullscreen());
+    }));
+
     auto help_menu = window.add_menu("&Help"_string);
     help_menu->add_action(*m_search_action);
     help_menu->add_action(*m_functions_help_action);