Clwb Ifor Bach (English: Little Ivor's club) is a Cardiff nightclub, music venue, Welsh-language club and community centre. It is known to the Cardiff Welsh-speaking community as Clwb (Welsh: (The) Club) and is often known by others on the Cardiff music scene as The Welsh Club.
Clwb Ifor Bach is used as a social centre by Welsh speaking people in Cardiff, as well as by many non-Welsh speakers. Until recent years, the club had a number of regular members only nights. This policy has been discontinued. Clwb Ifor Bach is the focal point for many Welsh-medium organisations and events in the area: social, educational, sporting and otherwise. English and Welsh are spoken equally throughout the club, and most staff are required to be bilingual. No anti-Welsh sentiment is tolerated in the club.