diff --git a/math/Makefile b/math/Makefile
index 55b96a715aaf..914e14589ba9 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -210,6 +210,7 @@
     SUBDIR += ess
     SUBDIR += eukleides
     SUBDIR += eval
+    SUBDIR += exprtk
     SUBDIR += facile
     SUBDIR += fann
     SUBDIR += fcl
diff --git a/math/exprtk/Makefile b/math/exprtk/Makefile
new file mode 100644
index 000000000000..bebe190d54e5
--- /dev/null
+++ b/math/exprtk/Makefile
@@ -0,0 +1,24 @@
+# $FreeBSD$
+
+PORTNAME=	exprtk
+DISTVERSION=	g20190519
+CATEGORIES=	math
+
+MAINTAINER=	yuri@FreeBSD.org
+COMMENT=	C++ mathematical expression library
+
+LICENSE=	MIT
+
+USE_GITHUB=	yes
+GH_ACCOUNT=	ArashPartow
+GH_TAGNAME=	12fc5df
+
+NO_BUILD=	yes
+NO_ARCH=	yes
+
+PLIST_FILES=	include/exprtk.hpp
+
+do-install:
+	${INSTALL_DATA} ${WRKSRC}/exprtk.hpp ${STAGEDIR}${PREFIX}/include
+
+.include <bsd.port.mk>
diff --git a/math/exprtk/distinfo b/math/exprtk/distinfo
new file mode 100644
index 000000000000..faa871f555cf
--- /dev/null
+++ b/math/exprtk/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1558941442
+SHA256 (ArashPartow-exprtk-g20190519-12fc5df_GH0.tar.gz) = 14a147441142c5ef237afbc01aab0346ca70bf76c58509a9ecf75685c15aefb0
+SIZE (ArashPartow-exprtk-g20190519-12fc5df_GH0.tar.gz) = 1313333
diff --git a/math/exprtk/pkg-descr b/math/exprtk/pkg-descr
new file mode 100644
index 000000000000..83b86bbd9bb9
--- /dev/null
+++ b/math/exprtk/pkg-descr
@@ -0,0 +1,6 @@
+The C++ Mathematical Expression Toolkit Library (ExprTk) is a simple to use,
+easy to integrate and extremely efficient run-time mathematical expression
+parser and evaluation engine. ExprTk supports numerous forms of functional,
+logical and vector processing semantics and is very easily extendible.
+
+WWW: http://www.partow.net/programming/exprtk/index.html