diff --git a/Lib/symtable.py b/Lib/symtable.py
index 4c832e68f94cbd..b22149f4f7794e 100644
--- a/Lib/symtable.py
+++ b/Lib/symtable.py
@@ -184,6 +184,7 @@ class Function(SymbolTable):
     __frees = None
     __globals = None
     __nonlocals = None
+    __cells = None
 
     def __idents_matching(self, test_func):
         return tuple(ident for ident in self.get_identifiers()
@@ -229,6 +230,13 @@ def get_frees(self):
             self.__frees = self.__idents_matching(is_free)
         return self.__frees
 
+    def get_cells(self):
+        """Return a tuple of cells in the function."""
+        if self.__cells is None:
+            is_cell = lambda x: _get_scope(x) == CELL
+            self.__cells = self.__idents_matching(is_cell)
+        return self.__cells
+
 
 class Class(SymbolTable):
 
@@ -342,6 +350,10 @@ def is_free(self):
         """
         return bool(self.__scope == FREE)
 
+    def is_cell(self):
+        """Return *True* if the symbol is a cell variable."""
+        return bool(self.__scope == CELL)
+
     def is_free_class(self):
         """Return *True* if a class-scoped symbol is free from
         the perspective of a method."""
diff --git a/Lib/test/test_symtable.py b/Lib/test/test_symtable.py
index 094ab8f573e7ba..1a972f8d50e173 100644
--- a/Lib/test/test_symtable.py
+++ b/Lib/test/test_symtable.py
@@ -611,6 +611,22 @@ def test_filter_syntax_warnings_by_module(self):
             self.assertEqual(wm.filename, filename)
             self.assertIs(wm.category, SyntaxWarning)
 
+    def test_cells(self):
+        #test for addition of is_cell() and get_cells()
+        #see https://github.com/python/cpython/issues/143504
+        code="""def outer():
+                    x=1
+                    def inner():
+                        return x"""
+
+        top=symtable.symtable(code,"?","exec")
+        outer=top.get_children()[0]
+
+        self.assertIn("x",outer.get_cells())
+
+        self.assertTrue(outer.lookup("x").is_cell())
+        self.assertFalse(outer.lookup("inner").is_cell())
+
 
 class ComprehensionTests(unittest.TestCase):
     def get_identifiers_recursive(self, st, res):
diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-01-08-16-28-03.gh-issue-143504.PlC_Yv.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-01-08-16-28-03.gh-issue-143504.PlC_Yv.rst
new file mode 100644
index 00000000000000..a4692f9c36777a
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2026-01-08-16-28-03.gh-issue-143504.PlC_Yv.rst
@@ -0,0 +1 @@
+Add symtable.is_cell() and get_cells() methods for cell variable analysis.