diff --git a/pkgs/by-name/ge/gemmi/package.nix b/pkgs/by-name/ge/gemmi/package.nix
new file mode 100644
index 0000000000000..f574f30a9c85b
--- /dev/null
+++ b/pkgs/by-name/ge/gemmi/package.nix
@@ -0,0 +1,64 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  cmake,
+  zlib,
+  enablePython ? true,
+  python3Packages,
+  testers,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "gemmi";
+  version = "0.6.6";
+
+  src = fetchFromGitHub {
+    owner = "project-gemmi";
+    repo = "gemmi";
+    rev = "refs/tags/v${finalAttrs.version}";
+    hash = "sha256-S31oCp6kLSYgmRaW7Q9/dMhjJ5Y0sK3WPpg2/ZMPyMg=";
+  };
+
+  nativeBuildInputs =
+    [ cmake ]
+    ++ lib.optionals enablePython (
+      with python3Packages;
+      [
+        pybind11
+        python
+        pythonImportsCheckHook
+      ]
+    );
+
+  buildInputs = [ zlib ];
+
+  cmakeFlags = [
+    (lib.cmakeBool "USE_PYTHON" enablePython)
+    (lib.cmakeFeature "PYTHON_INSTALL_DIR" "${python3Packages.python.sitePackages}")
+  ];
+
+  doCheck = true;
+
+  pythonImportsCheck = [ "gemmi" ];
+
+  doInstallCheck = enablePython;
+
+  nativeInstallCheckInputs = [ python3Packages.pytestCheckHook ];
+
+  pytestFlagsArray = [ "../tests" ];
+
+  passthru.tests = {
+    version = testers.testVersion { package = finalAttrs.finalPackage; };
+  };
+
+  meta = {
+    description = "Macromolecular crystallography library and utilities";
+    homepage = "https://github.com/project-gemmi/gemmi";
+    changelog = "https://github.com/project-gemmi/gemmi/releases/tag/v${finalAttrs.version}";
+    license = lib.licenses.mpl20;
+    maintainers = with lib.maintainers; [ natsukium ];
+    mainProgram = "gemmi";
+    platforms = lib.platforms.unix;
+  };
+})
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 19811d321275d..a4c7ebf553fb2 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4765,6 +4765,11 @@ self: super: with self; {
 
   gemfileparser2 = callPackage ../development/python-modules/gemfileparser2 { };
 
+  gemmi = toPythonModule (pkgs.gemmi.override {
+    enablePython = true;
+    python3Packages = self;
+  });
+
   genanki = callPackage ../development/python-modules/genanki { };
 
   generic = callPackage ../development/python-modules/generic { };