diff --git a/pkgs/development/python-modules/objax/default.nix b/pkgs/development/python-modules/objax/default.nix
deleted file mode 100644
index 1909658fe20a..000000000000
--- a/pkgs/development/python-modules/objax/default.nix
+++ /dev/null
@@ -1,83 +0,0 @@
-{
-  lib,
-  buildPythonPackage,
-  fetchFromGitHub,
-  jax,
-  jaxlib,
-  keras,
-  numpy,
-  parameterized,
-  pillow,
-  pytestCheckHook,
-  pythonOlder,
-  scipy,
-  setuptools,
-  tensorboard,
-  tensorflow,
-}:
-
-buildPythonPackage rec {
-  pname = "objax";
-  version = "1.8.0";
-  pyproject = true;
-
-  disabled = pythonOlder "3.9";
-
-  src = fetchFromGitHub {
-    owner = "google";
-    repo = "objax";
-    tag = "v${version}";
-    hash = "sha256-WD+pmR8cEay4iziRXqF3sHUzCMBjmLJ3wZ3iYOD+hzk=";
-  };
-
-  patches = [
-    # Issue reported upstream: https://github.com/google/objax/issues/270
-    ./replace-deprecated-device_buffers.patch
-  ];
-
-  build-system = [ setuptools ];
-
-  # Avoid propagating the dependency on `jaxlib`, see
-  # https://github.com/NixOS/nixpkgs/issues/156767
-  buildInputs = [ jaxlib ];
-
-  dependencies = [
-    jax
-    numpy
-    parameterized
-    pillow
-    scipy
-    tensorboard
-  ];
-
-  pythonImportsCheck = [ "objax" ];
-
-  # This is necessary to ignore the presence of two protobufs version (tensorflow is bringing an
-  # older version).
-  catchConflicts = false;
-
-  nativeCheckInputs = [
-    keras
-    pytestCheckHook
-    tensorflow
-  ];
-
-  enabledTestPaths = [ "tests/*.py" ];
-
-  disabledTests = [
-    # Test requires internet access for prefetching some weights
-    "test_pretrained_keras_weight_0_ResNet50V2"
-    # ModuleNotFoundError: No module named 'tree'
-    "TestResNetV2Pretrained"
-  ];
-
-  meta = with lib; {
-    description = "Machine learning framework that provides an Object Oriented layer for JAX";
-    homepage = "https://github.com/google/objax";
-    changelog = "https://github.com/google/objax/releases/tag/v${version}";
-    license = licenses.asl20;
-    maintainers = with maintainers; [ ndl ];
-    # Tests test_syncbn_{0,1,2}d and other tests from tests/parallel.py fail
-    broken = true;
-  };
-}
diff --git a/pkgs/development/python-modules/objax/replace-deprecated-device_buffers.patch b/pkgs/development/python-modules/objax/replace-deprecated-device_buffers.patch
deleted file mode 100644
index fc0fd50a90ce..000000000000
--- a/pkgs/development/python-modules/objax/replace-deprecated-device_buffers.patch
+++ /dev/null
@@ -1,14 +0,0 @@
-diff --git a/objax/util/util.py b/objax/util/util.py
-index c31a356..344cf9a 100644
---- a/objax/util/util.py
-+++ b/objax/util/util.py
-@@ -117,7 +117,8 @@ def get_local_devices():
-     if _local_devices is None:
-         x = jn.zeros((jax.local_device_count(), 1), dtype=jn.float32)
-         sharded_x = map_to_device(x)
--        _local_devices = [b.device() for b in sharded_x.device_buffers]
-+        device_buffers = [buf.data for buf in sharded_x.addressable_shards]
-+        _local_devices = [list(b.devices())[0] for b in device_buffers]
-     return _local_devices
- 
- 
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index cd0f080d77a3..5e7673c9deae 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -493,6 +493,7 @@ mapAliases ({
   ntlm-auth = throw "ntlm-auth has been removed, because it relies on the md4 implementation provided by openssl. Use pyspnego instead.";
   oauth = throw "oauth has been removed as it is unmaintained"; # added 2025-05-16
   oauth2 = throw "oauth2 has been removed as it is unmaintained"; # added 2025-05-16
+  objax = throw "objax has been removed because the upstream project was archived."; # Added 2025-10-04
   openai-triton = triton; # added 2024-07-18
   openai-triton-bin = triton-bin; # added 2024-07-18
   openai-triton-cuda = triton-cuda; # added 2024-07-18
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 6e3aefcf48cf..4dc67b8ebc8e 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -10768,8 +10768,6 @@ self: super: with self; {
 
   obfsproxy = callPackage ../development/python-modules/obfsproxy { };
 
-  objax = callPackage ../development/python-modules/objax { };
-
   objexplore = callPackage ../development/python-modules/objexplore { };
 
   objgraph = callPackage ../development/python-modules/objgraph {