diff --git a/pkgs/development/python-modules/stanio/default.nix b/pkgs/development/python-modules/stanio/default.nix
new file mode 100644
index 000000000000..83fcc7903107
--- /dev/null
+++ b/pkgs/development/python-modules/stanio/default.nix
@@ -0,0 +1,37 @@
+{ lib
+, buildPythonPackage
+, pythonOlder
+, fetchPypi
+, setuptools
+, numpy
+}:
+
+buildPythonPackage rec {
+  pname = "stanio";
+  version = "0.3.0";
+  pyproject = true;
+
+  disabled = pythonOlder "3.8";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-DFBK5nG41Sah2nEYWsAqJ3VQj/5tPbkfJC6shbz2BG8=";
+  };
+
+  nativeBuildInputs = [
+    setuptools
+  ];
+
+  propagatedBuildInputs = [
+    numpy
+  ];
+
+  pythonImportsCheck = [ "stanio" ];
+
+  meta = with lib; {
+    description = "Preparing inputs to and reading outputs from Stan";
+    homepage = "https://github.com/WardBrian/stanio";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ wegank ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index e358a75c6205..33ce200c1f2c 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -12515,6 +12515,8 @@ self: super: with self; {
 
   stack-data = callPackage ../development/python-modules/stack-data { };
 
+  stanio = callPackage ../development/python-modules/stanio { };
+
   stanza = callPackage ../development/python-modules/stanza { };
 
   starlette = callPackage ../development/python-modules/starlette {