diff --git a/var/spack/repos/builtin/packages/r-mutoss/package.py b/var/spack/repos/builtin/packages/r-mutoss/package.py
new file mode 100644
index 0000000000..a4d837c338
--- /dev/null
+++ b/var/spack/repos/builtin/packages/r-mutoss/package.py
@@ -0,0 +1,26 @@
+# 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 RMutoss(RPackage):
+    """Unified Multiple Testing Procedures
+
+    Designed to ease the application and comparison of multiple hypothesis
+    testing procedures for FWER, gFWER, FDR and FDX. Methods are standardized
+    and usable by the accompanying 'mutossGUI'."""
+
+    homepage = "https://github.com/kornl/mutoss/"
+    url      = "https://cloud.r-project.org/src/contrib/mutoss_0.1-12.tar.gz"
+    list_url = "https://cloud.r-project.org/src/contrib/Archive/mutoss"
+
+    version('0.1-12', sha256='2889ae3d502157592697124eb86adc14911e2b7fdaa7204743a376b1eeb967fa')
+
+    depends_on('r@2.10.0:', type=('build', 'run'))
+    depends_on('r-mvtnorm', type=('build', 'run'))
+    depends_on('r-plotrix', type=('build', 'run'))
+    depends_on('r-multtest@2.2.0:', type=('build', 'run'))
+    depends_on('r-multcomp@1.1-0:', type=('build', 'run'))