diff --git a/math/suitesparse-graphblas/Makefile b/math/suitesparse-graphblas/Makefile
new file mode 100644
index 000000000000..027344cb495b
--- /dev/null
+++ b/math/suitesparse-graphblas/Makefile
@@ -0,0 +1,32 @@
+# Created by: Thierry Thomas (<thierry@pompo.net>)
+
+PORTNAME=	GraphBLAS
+PORTVERSION=	5.0.5
+CATEGORIES=	math
+
+COMMENT=	Graph algorithms in the language of linear algebra
+
+LICENSE=	APACHE20
+
+USES=		cmake:insource localbase:ldflags
+OMP_NEEDED=	yes
+BUILD_WRKSRC=	${WRKSRC}/${PORTNAME}
+USE_LDCONFIG=	yes
+
+PORTDOCS=	CSC20_OpenMP_GraphBLAS.pdf GraphBLAS_API_C_v13.pdf	\
+		GraphBLAS_UserGuide.pdf HPEC19.pdf lagraph-grapl19.pdf	\
+		toms_graphblas.pdf
+
+.include "${.CURDIR}/../../math/suitesparse/bsd.suitesparse.mk"
+
+pre-configure-OPENMP-off:
+	${REINPLACE_CMD} -e '/find_package.*OpenMP/d' \
+		${WRKSRC}/GraphBLAS/CMakeLists.txt
+
+post-stage-DOCS-on:
+	@${MKDIR} ${STAGEDIR}${DOCSDIR}
+.for doc in ${PORTDOCS}
+	${INSTALL_DATA} ${BUILD_WRKSRC}/Doc/${doc} ${STAGEDIR}${DOCSDIR}
+.endfor
+
+.include <bsd.port.post.mk>
diff --git a/math/suitesparse-graphblas/pkg-descr b/math/suitesparse-graphblas/pkg-descr
new file mode 100644
index 000000000000..aeaa64bd8c9e
--- /dev/null
+++ b/math/suitesparse-graphblas/pkg-descr
@@ -0,0 +1,11 @@
+This port installs the module GraphBLAS of SuiteSparse.
+
+SuiteSparse:GraphBLAS is a complete implementation of the GraphBLAS
+standard, which defines a set of sparse matrix operations on an extended
+algebra of semirings using an almost unlimited variety of operators and
+types. When applied to sparse adjacency matrices, these algebraic
+operations are equivalent to computations on graphs. GraphBLAS provides
+a powerful and expressive framework for creating graph algorithms based
+on the elegant mathematics of sparse matrix operations on a semiring.
+
+WWW: http://faculty.cse.tamu.edu/davis/suitesparse.html
diff --git a/math/suitesparse-graphblas/pkg-plist b/math/suitesparse-graphblas/pkg-plist
new file mode 100644
index 000000000000..b8328461e62c
--- /dev/null
+++ b/math/suitesparse-graphblas/pkg-plist
@@ -0,0 +1,5 @@
+include/suitesparse/GraphBLAS.h
+lib/libgraphblas.a
+lib/libgraphblas.so
+lib/libgraphblas.so.5
+lib/libgraphblas.so.5.0.4