United Kingdom Unix Users Group

The UK's Unix and Open Systems User Group is a non-profit organisation and technical forum for the advocacy of open systems, particularly Unix and Unix-like operating systems, the promotion of free and open source software, and the advancement of open programming standards and networking protocols.

UKUUG aims to cater for all those working in, or interested in open systems and open standards.

It has been known as UKUUG since 1977, but produced its first magazine - UK Universities UNIX Newsletter - in December 1976.

UKUUG used to stand for "United Kingdom Unix Users Group" but is now just "UKUUG Ltd."