diff --git a/pkgs/development/python-modules/customtkinter/default.nix b/pkgs/development/python-modules/customtkinter/default.nix
new file mode 100644
index 000000000000..2aa4364816b7
--- /dev/null
+++ b/pkgs/development/python-modules/customtkinter/default.nix
@@ -0,0 +1,53 @@
+{
+  lib,
+  buildPythonPackage,
+  pythonOlder,
+  fetchPypi,
+  setuptools,
+  wheel,
+  tkinter,
+  darkdetect,
+}:
+let
+  pname = "customtkinter";
+  version = "5.2.2";
+in
+buildPythonPackage {
+  inherit pname version;
+  pyproject = true;
+  disabled = pythonOlder "3.7";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-/Y2zuvqWHJgu5gMNuoC0wuJYWGMHVrUTmG2xkRPY0gc=";
+  };
+
+  nativeBuildInputs = [
+    setuptools
+    wheel
+  ];
+  buildInputs = [ tkinter ];
+  propagatedBuildInputs = [ darkdetect ];
+
+  # No tests
+  doCheck = false;
+  pythonImportsCheck = [ "customtkinter" ];
+
+  meta = {
+    description = "A modern and customizable python UI-library based on Tkinter";
+    homepage = "https://github.com/TomSchimansky/CustomTkinter";
+    license = lib.licenses.mit;
+    longDescription = ''
+      CustomTkinter is a python UI-library based on Tkinter, which provides
+      new, modern and fully customizable widgets. They are created and
+      used like normal Tkinter widgets and can also be used in combination
+      with normal Tkinter elements. The widgets and the window colors
+      either adapt to the system appearance or the manually set mode
+      ('light', 'dark'), and all CustomTkinter widgets and windows support
+      HighDPI scaling (Windows, macOS). With CustomTkinter you'll get
+      a consistent and modern look across all desktop platforms
+      (Windows, macOS, Linux).
+    '';
+    maintainers = with lib.maintainers; [ donteatoreo ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 34a6e597710a..8edf03b8b0fc 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2625,6 +2625,8 @@ self: super: with self; {
 
   cu2qu = callPackage ../development/python-modules/cu2qu { };
 
+  customtkinter = callPackage ../development/python-modules/customtkinter { };
+
   cucumber-tag-expressions = callPackage ../development/python-modules/cucumber-tag-expressions { };
 
   cufflinks = callPackage ../development/python-modules/cufflinks { };