diff --git a/pkgs/development/python-modules/dedupe-pylbfgs/default.nix b/pkgs/development/python-modules/dedupe-pylbfgs/default.nix
new file mode 100644
index 000000000000..83b031473cd9
--- /dev/null
+++ b/pkgs/development/python-modules/dedupe-pylbfgs/default.nix
@@ -0,0 +1,59 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+
+  # build-system
+  cython,
+  numpy,
+  setuptools,
+
+  # tests
+  pytest-cov-stub,
+  pytestCheckHook,
+}:
+
+buildPythonPackage rec {
+  pname = "dedupe-pylbfgs";
+  version = "0.2.0.16";
+  pyproject = true;
+
+  # NOTE: This is a fork of larsmans/pylbfgs maintained by dedupeio
+  src = fetchFromGitHub {
+    owner = "dedupeio";
+    repo = "pylbfgs";
+    tag = "${version}";
+    hash = "sha256-H416dgZQxyqsnhmlK5keW8cJWY6gea4mebVuP0IEVOU=";
+  };
+
+  build-system = [
+    cython
+    numpy
+    setuptools
+  ];
+
+  dependencies = [
+    numpy
+  ];
+
+  nativeCheckInputs = [
+    pytest-cov-stub
+    pytestCheckHook
+  ];
+
+  # Prevent importing from source during test collection (only $out has compiled extensions)
+  preCheck = ''
+    rm -rf lbfgs
+  '';
+
+  pythonImportsCheck = [
+    "lbfgs"
+  ];
+
+  meta = {
+    description = "Python wrapper for L-BFGS and OWL-QN optimization algorithms";
+    homepage = "https://github.com/dedupeio/pylbfgs";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ daniel-fahey ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index f568dda5a799..b50cb59036bd 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3538,6 +3538,8 @@ self: super: with self; {
 
   dedupe-levenshtein-search = callPackage ../development/python-modules/dedupe-levenshtein-search { };
 
+  dedupe-pylbfgs = callPackage ../development/python-modules/dedupe-pylbfgs { };
+
   deebot-client = callPackage ../development/python-modules/deebot-client { };
 
   deemix = callPackage ../development/python-modules/deemix { };