Welney is a village and civil parish in the Fens of England, and the county of Norfolk. The village is about 10 miles (16 km) south-west of the town of Downham Market, 20 miles (30 km) south of the town of King's Lynn and 45 miles (70 km) west of the city of Norwich. The county boundary with Cambridgeshire is adjacent, with the city of Cambridge 25 miles (40 km) to the south. Welney is immediately to the west of the Old Bedford River, and New Bedford River, which are all parallel channels and are here crossed by the A1101 road.