diff --git a/pkgs/development/python-modules/petsctools/default.nix b/pkgs/development/python-modules/petsctools/default.nix
new file mode 100644
index 000000000000..6caad243b97b
--- /dev/null
+++ b/pkgs/development/python-modules/petsctools/default.nix
@@ -0,0 +1,53 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  setuptools,
+  packaging,
+  petsc4py,
+  slepc4py,
+  pytestCheckHook,
+}:
+
+buildPythonPackage rec {
+  pname = "petsctools";
+  version = "2025.2";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "firedrakeproject";
+    repo = "petsctools";
+    tag = version;
+    hash = "sha256-DC0jFybDEacA6otYvID5DfbUe1ANz5W4UmPXCSsRvOo=";
+  };
+
+  build-system = [
+    setuptools
+  ];
+
+  dependencies = [
+    packaging
+  ];
+
+  optional-dependencies = {
+    petsc4py = [ petsc4py ];
+    slepc4py = [ slepc4py ];
+  };
+
+  pythonImportsCheck = [
+    "petsctools"
+  ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+  ]
+  ++ optional-dependencies.petsc4py;
+
+  meta = {
+    homepage = "https://github.com/firedrakeproject/petsctools";
+    description = "Pythonic extensions for petsc4py and slepc4py";
+    changelog = "https://github.com/firedrakeproject/petsctools/releases/tag/${src.tag}";
+    license = lib.licenses.lgpl3Plus;
+    maintainers = with lib.maintainers; [ qbisi ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index f0f0db0aea59..be4aad9afe78 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -11672,6 +11672,8 @@ self: super: with self; {
     }
   );
 
+  petsctools = callPackage ../development/python-modules/petsctools { };
+
   pettingzoo = callPackage ../development/python-modules/pettingzoo { };
 
   pex = callPackage ../development/python-modules/pex { };