diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index ff468592120a..7a8b3d595c98 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -2544,6 +2544,13 @@
     githubId = 410028;
     name = "Tobias Bergkvist";
   };
+  berquist = {
+    name = "Eric Berquist";
+    email = "eric.berquist@gmail.com";
+    github = "berquist";
+    githubId = 727571;
+    keys = [ { fingerprint = "AAD4 3B70 A504 9675 CFC8  B101 BAFD 205D 5FA2 B329"; } ];
+  };
   berryp = {
     email = "berryphillips@gmail.com";
     github = "berryp";
diff --git a/pkgs/development/python-modules/numpy-groupies/default.nix b/pkgs/development/python-modules/numpy-groupies/default.nix
new file mode 100644
index 000000000000..e09ce3abb7ba
--- /dev/null
+++ b/pkgs/development/python-modules/numpy-groupies/default.nix
@@ -0,0 +1,50 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  pytestCheckHook,
+  setuptools,
+  setuptools-scm,
+  numpy,
+  numba,
+  pandas,
+  gitUpdater,
+}:
+
+buildPythonPackage rec {
+  pname = "numpy-groupies";
+  version = "0.11.2";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "ml31415";
+    repo = "numpy-groupies";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-Eu+5SR28jIasKe1p7rvbq2yo3PGZRQWWdG3A5vGhnyM=";
+  };
+
+  build-system = [
+    setuptools
+    setuptools-scm
+  ];
+
+  dependencies = [ numpy ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+    numba
+    pandas
+  ];
+
+  pythonImportsCheck = [ "numpy_groupies" ];
+
+  passthru.updateScript = gitUpdater { tagPrefix = "v"; };
+
+  meta = with lib; {
+    homepage = "https://github.com/ml31415/numpy-groupies";
+    changelog = "https://github.com/ml31415/numpy-groupies/releases/tag/v${version}";
+    description = "Optimised tools for group-indexing operations: aggregated sum and more";
+    license = licenses.bsd2;
+    maintainers = [ maintainers.berquist ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 8723e43860ce..9abd47731678 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -9251,6 +9251,8 @@ self: super: with self; {
   numpy_2 = callPackage ../development/python-modules/numpy/2.nix { };
   numpy = if self.pythonOlder "3.13" then numpy_1 else numpy_2;
 
+  numpy-groupies = callPackage ../development/python-modules/numpy-groupies { };
+
   numpy-stl = callPackage ../development/python-modules/numpy-stl { };
 
   numpyro = callPackage ../development/python-modules/numpyro { };