Bryncelyn Brewery was a brew pub in 'Wern Fawr Inn', a pub located near Ystalyfera, in south Wales. Brewing was begun in July 1999, and the brewers are Will Hopton and Robert Scott. The brewery produces three-quarters of a UK brewer's barrel of beer at a time. The ales have been consistent and frequent winners of awards at beer festivals since the brewery's inception. Brewing stopped in 2017.