ISLISP (also capitalized as ISLisp) is a programming language in the Lisp family standardized by the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) joint working group ISO/IEC JTC 1/SC 22/WG 16[1] (commonly termed simply SC22/WG16 or WG16).
The primary output of this working group was an international standard, published by ISO.
[5] The goal of this standards effort was to define a small, core language to help bridge the gap between differing dialects of Lisp.
It attempted to accomplish this goal by studying primarily Common Lisp, EuLisp, Le Lisp, and Scheme and standardizing only those features shared between them.
ISLISP implementations have been made for many operating systems including: Windows, most Unix and POSIX based (Linux, macOS, FreeBSD, OpenBSD, NetBSD, Solaris, HP-UX, AIX, Cygwin, QNX), Android, DOS, OS/2, Pocket PC, OpenVMS, and z/OS.