Sŵn Festival (sŵn is Welsh for "sound, noise", Welsh pronunciation: [suːn]) is a music festival founded by BBC Radio 1 DJ Huw Stephens and Cardiff-based promoter John Rostron. The festival takes place annually in Stephens' hometown of Cardiff, Wales. The first Sŵn Festival took place in November 2007. Bands playing included The Cribs, Beirut, David Holmes, Edwyn Collins and Cherry Ghost with DJs including Annie Mac. In 2018 it was announced that Clwb Ifor Bach would take over the running of the festival as Stephens and Rostron departed.