Crymlyn Burrows (Welsh: Twyni Crymlyn) is an area of land in Wales, UK to the east of Swansea city centre, and south of Crymlyn Bog. It is bounded by Jersey Marine Beach to the south and the River Neath to the east. The land west of Baldwin's Crescent falls within the City and County of Swansea and from Baldwin's Crescent eastwards falls within Neath Port Talbot.