diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c4142d09c..3b8436346d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
 ### Changed (changing behavior/API/variables/...)
 
 ### Infrastructure (changes irrelevant to downstream codes)
+- [[PR402]](https://github.com/lanl/singularity-eos/pull/402) Added stiff gas to python interface
 
 ### Removed (removing behavior/API/varaibles/...)
 
diff --git a/python/module.cpp b/python/module.cpp
index 2b89795552..f9c70f32a2 100644
--- a/python/module.cpp
+++ b/python/module.cpp
@@ -32,6 +32,10 @@ PYBIND11_MODULE(singularity_eos, m) {
       py::arg("gm1"), py::arg("Cv")
     );
 
+  eos_class<StiffGas>(m, "StiffGas")
+  .def(py::init())
+  .def(py::init<Real, Real, Real, Real>(), py::arg("gm1"), py::arg("Cv"), py::arg("Pinf"), py::arg("q"));
+
   eos_class<Gruneisen>(m, "Gruneisen")
     .def(py::init())
     .def(
diff --git a/test/python_bindings.py b/test/python_bindings.py
index 951e90523e..8f4be98716 100644
--- a/test/python_bindings.py
+++ b/test/python_bindings.py
@@ -1,5 +1,5 @@
 #------------------------------------------------------------------------------
-# © 2021-2023. Triad National Security, LLC. All rights reserved.  This
+# © 2021-2024. Triad National Security, LLC. All rights reserved.  This
 # program was produced under U.S. Government contract 89233218CNA000001
 # for Los Alamos National Laboratory (LANL), which is operated by Triad
 # National Security, LLC for the U.S.  Department of Energy/National
@@ -67,6 +67,9 @@ def testConstants(self):
     def testIdealGas(self):
         eos = singularity_eos.IdealGas(1,1)
 
+    def testStiffGas(self):
+        eos = singularity_eos.StiffGas(1,1,1,1)
+
     def testShiftedIdealGas(self):
         eos = singularity_eos.Shifted(singularity_eos.IdealGas(1,1),1)