diff --git a/pkgs/by-name/lw/lwgrp/package.nix b/pkgs/by-name/lw/lwgrp/package.nix
new file mode 100644
index 000000000000..c9c657bee32a
--- /dev/null
+++ b/pkgs/by-name/lw/lwgrp/package.nix
@@ -0,0 +1,27 @@
+{ lib, stdenv, fetchFromGitHub, mpi, autoreconfHook }:
+
+stdenv.mkDerivation rec {
+  pname = "lwgrp";
+  version = "1.0.5";
+
+  src = fetchFromGitHub {
+    owner = "LLNL";
+    repo = "lwgrp";
+    rev = "v${version}";
+    hash = "sha256-f0tYn9FbrOz8iMoG8Is8vYDNfYHTfxLKNnyxJA+Msdk=";
+  };
+
+  outputs = [ "out" "dev" ];
+
+  nativeBuildInputs = [ autoreconfHook ];
+
+  propagatedBuildInputs = [ mpi ];
+
+  meta = with lib; {
+    description = "Data structures and operations to group MPI processes as an ordered set";
+    homepage = "https://github.com/LLNL/lwgrp";
+    platforms = platforms.linux;
+    license = licenses.bsd3;
+    maintainers = [ maintainers.markuskowa ];
+  };
+}