diff --git a/var/spack/repos/builtin/packages/pumgen/package.py b/var/spack/repos/builtin/packages/pumgen/package.py
new file mode 100644
index 00000000000..e792d88e028
--- /dev/null
+++ b/var/spack/repos/builtin/packages/pumgen/package.py
@@ -0,0 +1,58 @@
+# Copyright Spack Project Developers. See COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+
+from spack.package import *
+
+
+class Pumgen(CMakePackage):
+    """PUMGen - A mesh converter to the PUML format, as used in SeisSol."""
+
+    homepage = "https://github.com/SeisSol/PUMGen/wiki/How-to-compile-PUMGen"
+    git = "https://github.com/SeisSol/PUMGen.git"
+    version("master", branch="master", submodules=True)
+
+    version(
+        "1.1.1", tag="v1.1.1", commit="ad3d0f22edfdb72713ef7bb42a41251fa7275bd8", submodules=True
+    )
+    version(
+        "1.0.1", tag="v1.0.1", commit="13d1e1f41e3cdcb1d3c94f1870f003778e5f0ce0", submodules=True
+    )
+    maintainers("Thomas-Ulrich", "davschneller", "vikaskurapati")
+    variant(
+        "with_simmetrix",
+        default=False,
+        description="Use Simmetrix libraries, embedding mesh generation with Simmetrix in PUMGen",
+    )
+
+    depends_on("mpi")
+    # simmetrix (e.g. @2024.0-240616) currently does not
+    # have a precompiled libSimPartitionWrapper-openmpi5.a
+    depends_on("openmpi@:4", when="+with_simmetrix ^[virtuals=mpi] openmpi")
+
+    depends_on("hdf5@1.10: +shared +threadsafe +mpi")
+    depends_on("simmetrix-simmodsuite", when="+with_simmetrix")
+
+    with when("@1.0.1"):
+        depends_on("pumi +int64 +zoltan ~fortran", when="~with_simmetrix")
+        depends_on(
+            "pumi +int64 simmodsuite=base +zoltan ~fortran ~simmodsuite_version_check",
+            when="+with_simmetrix",
+        )
+        depends_on("zoltan@3.83 +parmetis+int64 ~fortran +shared")
+
+    depends_on("easi@1.2: +asagi jit=impalajit,lua", when="+with_simmetrix")
+
+    def cmake_args(self):
+        args = [self.define_from_variant("SIMMETRIX", "with_simmetrix")]
+        if "simmetrix-simmodsuite" in self.spec:
+            mpi_id = self.spec["mpi"].name + self.spec["mpi"].version.up_to(1).string
+            args.append("-DSIM_MPI=" + mpi_id)
+            args.append("-DSIMMETRIX_ROOT=" + self.spec["simmetrix-simmodsuite"].prefix)
+        return args
+
+    def install(self, spec, prefix):
+        self.cmake(spec, prefix)
+        self.build(spec, prefix)
+        install_tree(self.build_directory, prefix.bin)