The Burry Port and Gwendraeth Valley Railway (BP&GVR) was a mineral railway company that constructed a railway line in Carmarthenshire, Wales, by conversion of a canal, to connect collieries and limestone pits to the sea at Kidwelly. It extended its network to include Burry Port, Trimsaran and a brickworks at Pwll, later extending to Sandy near Llanelli. For a time the company worked the separate Gwendraeth Valleys Railway. The BP&GVR was notable because of the very low height of some overbridges, a legacy of the canal conversion.

Burry Port is a port town and community in Carmarthenshire, Wales, on the Loughor estuary, to the west of Llanelli and south-east of Kidwelly. Its population was recorded at 5,680 in the 2001 census and 6,156 in the 2011 census, and estimated at 5,998 in 2019. The town has a harbour. It is also where Amelia Earhart landed as the first woman to fly across the Atlantic Ocean. Nearby are the Pembrey Burrows sand dune and wetland system, forming a country park, and the Cefn Sidan sands. Its musical heritage includes Burry Port Opera, Male Choir and Burry Port Town Band.