Downham Market, sometimes simply referred to as Downham, is a market town and civil parish in Norfolk, England. It lies on the edge of the Fens, on the River Great Ouse, approximately 11 miles south of King’s Lynn, 39 miles west of Norwich and 30 miles north of Cambridge.
The civil parish has an area of 5.2 km² and in the 2011 census had a population of 9,994 in 4,637 households.
It was an agricultural centre, developing as a market for the produce of the Fens with a bridge across the Ouse. During the Middle Ages, it was famed for its butter market and also hosted a notable horse fair. The market is now held Fridays and Saturdays.