diff --git a/devel/bison/Makefile b/devel/bison/Makefile
new file mode 100644
index 00000000000..8c24f79b4f8
--- /dev/null
+++ b/devel/bison/Makefile
@@ -0,0 +1,19 @@
+# OpenBSD makefile for: bison
+# Version required:     1.25
+# Date created:         22 November 1997
+# Whom:                 d
+#
+# $OpenBSD: Makefile,v 1.1.1.1 1998/02/10 23:54:05 niklas Exp $
+#
+
+DISTNAME=       bison-1.25
+CATEGORIES=	devel
+MASTER_SITES=	${MASTER_SITE_GNU}
+
+MAINTAINER=	d@openbsd.org
+
+HAS_CONFIGURE=	yes
+GNU_CONFIGURE=	yes
+MAN1=		bison.1
+
+.include <bsd.port.mk>
diff --git a/devel/bison/files/md5 b/devel/bison/files/md5
new file mode 100644
index 00000000000..b0e425ed2b2
--- /dev/null
+++ b/devel/bison/files/md5
@@ -0,0 +1 @@
+MD5 (bison-1.25.tar.gz) = 65f577d0f8ffaf61ae21c23c0918d225
diff --git a/devel/bison/pkg/COMMENT b/devel/bison/pkg/COMMENT
new file mode 100644
index 00000000000..721d61ff97a
--- /dev/null
+++ b/devel/bison/pkg/COMMENT
@@ -0,0 +1 @@
+GNU parser generator
diff --git a/devel/bison/pkg/DESCR b/devel/bison/pkg/DESCR
new file mode 100644
index 00000000000..56b2143a44e
--- /dev/null
+++ b/devel/bison/pkg/DESCR
@@ -0,0 +1,10 @@
+   "Bison" is a general-purpose parser generator that converts a
+grammar description for an LALR(1) context-free grammar into a C
+program to parse that grammar.  Once you are proficient with Bison, you
+may use it to develop a wide range of language parsers, from those used
+in simple desk calculators to complex programming languages.
+
+   Bison is upward compatible with Yacc: all properly-written Yacc
+grammars ought to work with Bison with no change.  Anyone familiar with
+Yacc should be able to use Bison with little trouble.  You need to be
+fluent in C programming in order to use Bison.
diff --git a/devel/bison/pkg/PLIST b/devel/bison/pkg/PLIST
new file mode 100644
index 00000000000..cdc1c73a9a1
--- /dev/null
+++ b/devel/bison/pkg/PLIST
@@ -0,0 +1,11 @@
+@cwd /usr/local
+bin/bison
+share/bison.simple
+share/bison.hairy
+info/bison.info
+info/bison.info-1
+info/bison.info-2
+info/bison.info-3
+info/bison.info-4
+info/bison.info-5
+man/man1/bison.1