diff --git a/pkgs/development/python-modules/ionhash/default.nix b/pkgs/development/python-modules/ionhash/default.nix
deleted file mode 100644
index 8d99e24101f3..000000000000
--- a/pkgs/development/python-modules/ionhash/default.nix
+++ /dev/null
@@ -1,51 +0,0 @@
-{
-  lib,
-  buildPythonPackage,
-  fetchFromGitHub,
-  fetchpatch,
-  amazon-ion,
-  six,
-  pytestCheckHook,
-}:
-
-buildPythonPackage rec {
-  pname = "ionhash";
-  version = "1.2.1";
-  format = "setuptools";
-
-  src = fetchFromGitHub {
-    owner = "amzn";
-    repo = "ion-hash-python";
-    rev = "v${version}";
-    hash = "sha256-mXOLKXauWwwIA/LnF4qyZsBiF/QM+rF9MmE2ewmozYo=";
-    fetchSubmodules = true;
-  };
-
-  patches = [
-    (fetchpatch {
-      url = "https://github.com/amzn/ion-hash-python/commit/5cab56d694ecc176e394bb455c2d726ba1514ce0.patch";
-      hash = "sha256-P5QByNafgxI//e3m+b0oG00+rVymCsT/J4dOZSk3354=";
-    })
-  ];
-
-  postPatch = ''
-    substituteInPlace setup.py --replace "'pytest-runner'," ""
-  '';
-
-  propagatedBuildInputs = [
-    amazon-ion
-    six
-  ];
-
-  nativeCheckInputs = [ pytestCheckHook ];
-
-  pythonImportsCheck = [ "ionhash" ];
-
-  meta = with lib; {
-    description = "Python implementation of Amazon Ion Hash";
-    homepage = "https://github.com/amzn/ion-hash-python";
-    license = licenses.asl20;
-    maintainers = [ maintainers.terlar ];
-    broken = true; # last successful build 2023-09-28
-  };
-}
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index a4804ad94421..49ff85cf8eda 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -340,6 +340,7 @@ mapAliases ({
   imgaug = throw "imgaug has been removed as it is no longer maintained"; # added 2023-07-10
   imgtool = throw "imgtool has been promoted to a top-level attribute name: `mcuboot-imgtool`"; # added 2024-10-09
   intreehook = throw "intreehooks has been removed because it is obsolete as a backend-path key was added to PEP 517"; # added 2023-04-11
+  ionhash = throw "ionhash has been removed due to being unmaintained upstream"; # added 2025-07-30
   iotawattpy = ha-iotawattpy; # added 2025-07-06
   ipaddress = throw "ipaddress has been removed because it is no longer required since python 2.7."; # added 2022-05-30
   ipdbplugin = throw "ipdbplugin has been removed because it has no longer maintained for 6 years"; # added 2024-05-21
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 7eb858500071..1f210b7ad8c3 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7077,8 +7077,6 @@ self: super: with self; {
 
   iometer = callPackage ../development/python-modules/iometer { };
 
-  ionhash = callPackage ../development/python-modules/ionhash { };
-
   ionoscloud = callPackage ../development/python-modules/ionoscloud { };
 
   iopath = callPackage ../development/python-modules/iopath { };