diff --git a/var/spack/repos/builtin/packages/tramonto/package.py b/var/spack/repos/builtin/packages/tramonto/package.py
new file mode 100644
index 0000000000..929d5c869a
--- /dev/null
+++ b/var/spack/repos/builtin/packages/tramonto/package.py
@@ -0,0 +1,24 @@
+# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class Tramonto(CMakePackage):
+    """Tramonto: Software for Nanostructured Fluids in Materials and Biology"""
+
+    homepage = "https://software.sandia.gov/tramonto/"
+    git      = "https://github.com/Tramonto/Tramonto.git"
+
+    version('develop', branch='master')
+
+    depends_on('trilinos@:12+nox')
+
+    def cmake_args(self):
+        spec = self.spec
+        args = []
+        args.extend(['-DTRILINOS_PATH:PATH=%s/lib/cmake/Trilinos' %
+                     spec['trilinos'].prefix])
+        return args