diff --git a/sysutils/cmb/Makefile b/sysutils/cmb/Makefile
new file mode 100644
index 00000000000..fb5dd318adf
--- /dev/null
+++ b/sysutils/cmb/Makefile
@@ -0,0 +1,24 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2019/12/17 03:36:07 bcallah Exp $
+
+COMMENT =	combinatorics library/utility from FreeBSD
+DISTNAME =	cmb-3.9.5
+CATEGORIES =	sysutils
+
+SHARED_LIBS +=	cmb                       0.0 # 0.0
+
+HOMEPAGE =	https://github.com/ibara/cmb
+MAINTAINER =	Brian Callahan <bcallah@openbsd.org>
+
+# BSD
+PERMIT_PACKAGE =	Yes
+
+WANTLIB += c crypto m
+
+MASTER_SITES =	https://github.com/ibara/cmb/releases/download/${DISTNAME}/
+
+NO_TEST =	Yes
+
+post-install:
+	${INSTALL_DATA} ${WRKSRC}/lib/libcmb/cmb.h ${PREFIX}/include
+
+.include <bsd.port.mk>
diff --git a/sysutils/cmb/distinfo b/sysutils/cmb/distinfo
new file mode 100644
index 00000000000..960156acfb6
--- /dev/null
+++ b/sysutils/cmb/distinfo
@@ -0,0 +1,2 @@
+SHA256 (cmb-3.9.5.tar.gz) = 6cvSHLVnpF25yYBMVwOA838ji1XKwrjvz9UGluycurE=
+SIZE (cmb-3.9.5.tar.gz) = 21580
diff --git a/sysutils/cmb/pkg/DESCR b/sysutils/cmb/pkg/DESCR
new file mode 100644
index 00000000000..0febd3fd5e2
--- /dev/null
+++ b/sysutils/cmb/pkg/DESCR
@@ -0,0 +1,7 @@
+cmb is a combinatorics library/utility.
+
+It is both a novel algorithm and the fastest implementation we have for
+complex combinatorics. It is faster than python's itertools, faster than
+numpy, faster than Perl, faster than Perl XS, faster than comb in R.
+
+It is a port of cmb(1)/cmb(3) from FreeBSD.
diff --git a/sysutils/cmb/pkg/PLIST b/sysutils/cmb/pkg/PLIST
new file mode 100644
index 00000000000..63daf9570d4
--- /dev/null
+++ b/sysutils/cmb/pkg/PLIST
@@ -0,0 +1,8 @@
+@comment $OpenBSD: PLIST,v 1.1.1.1 2019/12/17 03:36:07 bcallah Exp $
+@bin bin/cmb
+include/cmb.h
+@static-lib lib/libcmb.a
+@lib lib/libcmb.so.${LIBcmb_VERSION}
+@static-lib lib/libcmb_p.a
+@man man/man1/cmb.1
+@man man/man3/cmb.3