diff --git a/Doc/library/tkinter.rst b/Doc/library/tkinter.rst
index 222a4d0128bd8d..fcace71329b345 100644
--- a/Doc/library/tkinter.rst
+++ b/Doc/library/tkinter.rst
@@ -2134,6 +2134,16 @@ Base and mixin classes
       window; otherwise it refers to the display of the application's main
       window.
 
+   .. method:: winfo_isdark()
+
+      On macOS and Windows, return ``True`` if the widget is in "dark mode",
+      and ``False`` otherwise.
+      Always return ``False`` on X11.
+
+      .. versionadded:: next
+
+         Requires Tk 9.1 or newer.
+
    .. method:: winfo_ismapped()
 
       Return ``1`` if the widget is currently mapped, ``0`` otherwise.
@@ -2605,6 +2615,24 @@ Base and mixin classes
       empty string.
       :meth:`wm_group` is an alias of :meth:`!group`.
 
+   .. method:: wm_iconbadge(badge)
+      :no-typesetting:
+
+   .. method:: iconbadge(badge)
+
+      Set a badge for the window's icon, intended for display in the Dock
+      (macOS), taskbar (Windows) or app panel (X11).
+      *badge* may be a positive integer (for example a count of unread
+      messages) or an exclamation point to denote that attention is needed;
+      an empty string removes the badge.
+      On X11 the variable ``::tk::icons::base_icon(window)`` must be set to the
+      window's icon image for the badge to appear.
+      :meth:`wm_iconbadge` is an alias of :meth:`!iconbadge`.
+
+      .. versionadded:: next
+
+         Requires Tk 9.0 or newer.
+
    .. method:: wm_iconbitmap(bitmap=None, default=None)
       :no-typesetting:
 
@@ -2814,6 +2842,22 @@ Base and mixin classes
       has been set.
       :meth:`wm_sizefrom` is an alias of :meth:`!sizefrom`.
 
+   .. method:: wm_stackorder(relation=None, window=None)
+      :no-typesetting:
+
+   .. method:: stackorder(relation=None, window=None)
+
+      Query the stacking order of top-level windows.
+      With no arguments, return a list of the mapped top-level widgets in
+      stacking order, from lowest to highest, recursively including this
+      window's top-level children.
+      If *relation* is ``'isabove'`` or ``'isbelow'`` and *window* is another
+      top-level, return ``True`` if this window is respectively above or below
+      *window* in the stacking order, and ``False`` otherwise.
+      :meth:`wm_stackorder` is an alias of :meth:`!stackorder`.
+
+      .. versionadded:: next
+
    .. method:: wm_state(newstate=None)
       :no-typesetting:
 
diff --git a/Doc/whatsnew/3.16.rst b/Doc/whatsnew/3.16.rst
index 24a767c56e8397..8abc4d0af8d19f 100644
--- a/Doc/whatsnew/3.16.rst
+++ b/Doc/whatsnew/3.16.rst
@@ -163,6 +163,11 @@ tkinter
   synchronization of the displayed view with the underlying text.
   (Contributed by Serhiy Storchaka in :gh:`151675`.)
 
+* Added new window-management methods :meth:`~tkinter.Misc.winfo_isdark`
+  (dark mode detection), :meth:`~tkinter.Wm.wm_iconbadge` (application icon
+  badge) and :meth:`~tkinter.Wm.wm_stackorder` (toplevel stacking order).
+  (Contributed by Serhiy Storchaka in :gh:`151874`.)
+
 
 xml
 ---
diff --git a/Lib/test/test_tkinter/test_misc.py b/Lib/test/test_tkinter/test_misc.py
index b4cb5aaae1b1e5..77bf84304e78ef 100644
--- a/Lib/test/test_tkinter/test_misc.py
+++ b/Lib/test/test_tkinter/test_misc.py
@@ -751,6 +751,12 @@ def test_winfo_viewable(self):
         self.root.update()
         self.assertTrue(f.winfo_viewable())
 
+    @requires_tk(9, 1)
+    def test_winfo_isdark(self):
+        self.assertIsInstance(self.root.winfo_isdark(), bool)
+        if self.root._windowingsystem == 'x11':
+            self.assertFalse(self.root.winfo_isdark())
+
     def test_winfo_atom(self):
         atom = self.root.winfo_atom('PRIMARY')
         self.assertIsInstance(atom, int)
@@ -1057,6 +1063,37 @@ def test_wm_transient(self):
         t.transient(self.root)
         self.assertEqual(str(t.transient()), str(self.root))
 
+    def test_wm_stackorder(self):
+        t1 = tkinter.Toplevel(self.root)
+        t2 = tkinter.Toplevel(self.root)
+        t1.deiconify()
+        t2.deiconify()
+        self.root.update()
+        t1.lift(t2)  # Raise t1 above t2.
+        self.root.update()
+        order = self.root.wm_stackorder()
+        self.assertIsInstance(order, list)
+        self.assertTrue(all(isinstance(w, tkinter.Misc) for w in order))
+        names = [str(w) for w in order]
+        self.assertIn(str(t1), names)
+        self.assertIn(str(t2), names)
+        # The list is ordered from lowest to highest, consistently with the
+        # isabove/isbelow queries.
+        self.assertGreater(names.index(str(t1)), names.index(str(t2)))
+        self.assertIs(t1.wm_stackorder('isabove', t2), True)
+        self.assertIs(t1.wm_stackorder('isbelow', t2), False)
+        self.assertIs(t2.wm_stackorder('isbelow', t1), True)
+
+    @requires_tk(9, 0)
+    def test_wm_iconbadge(self):
+        if self.root._windowingsystem == 'x11':
+            # On X11 the badge requires ::tk::icons::base_icon to be set.
+            self.skipTest('iconbadge needs a base icon on X11')
+        # The badge is not queryable, so just check the call does not fail.
+        self.root.wm_iconbadge('3')
+        self.root.wm_iconbadge('!')
+        self.root.wm_iconbadge('')
+
 
 class EventTest(AbstractTkTest, unittest.TestCase):
 
diff --git a/Lib/tkinter/__init__.py b/Lib/tkinter/__init__.py
index 8bdf7cc1e2d96b..24d229ed74d948 100644
--- a/Lib/tkinter/__init__.py
+++ b/Lib/tkinter/__init__.py
@@ -1275,6 +1275,15 @@ def winfo_interps(self, displayof=0):
         args = ('winfo', 'interps') + self._displayof(displayof)
         return self.tk.splitlist(self.tk.call(args))
 
+    def winfo_isdark(self): # new in Tk 9.1
+        """Return whether this widget is in "dark mode".
+
+        On macOS and Windows return True if the widget is in "dark mode",
+        and False otherwise.  Always return False on X11.
+        """
+        return self.tk.getboolean(
+            self.tk.call('winfo', 'isdark', self._w))
+
     def winfo_ismapped(self):
         """Return true if this widget is mapped."""
         return self.tk.getint(
@@ -2330,6 +2339,22 @@ def wm_group(self, pathName=None):
 
     group = wm_group
 
+    def wm_iconbadge(self, badge): # new in Tk 9.0
+        """Set a badge for the icon of this widget.
+
+        BADGE can be a positive integer number, for instance the number of
+        new or unread messages, or an exclamation point denoting attention
+        needed. If BADGE is an empty string, the badge image is removed from
+        the application icon.
+
+        The badge is intended for display in the Dock (macOS), taskbar
+        (Windows) or app panel (X11). On X11, the variable
+        ::tk::icons::base_icon(WINDOW) must be set to the image used for the
+        window icon for this command to work."""
+        return self.tk.call('wm', 'iconbadge', self._w, badge)
+
+    iconbadge = wm_iconbadge
+
     def wm_iconbitmap(self, bitmap=None, default=None):
         """Set bitmap for the iconified widget to BITMAP. Return
         the bitmap if None is given.
@@ -2479,6 +2504,25 @@ def wm_sizefrom(self, who=None):
 
     sizefrom = wm_sizefrom
 
+    def wm_stackorder(self, relation=None, window=None):
+        """Query the stacking order of toplevel windows.
+
+        If called with no arguments, return a list of toplevel widgets in
+        stacking order, from lowest to highest.  The list recursively
+        includes all of this window's children that are toplevels; only
+        toplevels currently mapped to the screen are included.
+
+        If RELATION is "isabove" or "isbelow" and WINDOW is another toplevel,
+        return True if this window is respectively above or below WINDOW in
+        the stacking order, and False otherwise."""
+        if relation is None:
+            return [self._nametowidget(x) for x in self.tk.splitlist(
+                self.tk.call('wm', 'stackorder', self._w))]
+        return self.tk.getboolean(
+            self.tk.call('wm', 'stackorder', self._w, relation, window))
+
+    stackorder = wm_stackorder
+
     def wm_state(self, newstate=None):
         """Query or set the state of this widget as one of normal, icon,
         iconic (see wm_iconwindow), withdrawn, or zoomed (Windows only)."""
diff --git a/Misc/NEWS.d/next/Library/2026-06-22-00-46-57.gh-issue-151874.8VtTrq.rst b/Misc/NEWS.d/next/Library/2026-06-22-00-46-57.gh-issue-151874.8VtTrq.rst
new file mode 100644
index 00000000000000..50a33f5be80987
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2026-06-22-00-46-57.gh-issue-151874.8VtTrq.rst
@@ -0,0 +1,3 @@
+Add the :mod:`tkinter` methods :meth:`!Misc.winfo_isdark`,
+:meth:`!Wm.wm_iconbadge` and :meth:`!Wm.wm_stackorder`, wrapping the
+``winfo isdark``, ``wm iconbadge`` and ``wm stackorder`` Tk commands.