Mildenhall is a market town and civil parish in the West Suffolk district, in the county of Suffolk, England. The town is near the A11 road, and is 37 mi (60 km) north-west of Ipswich, the county town. The large Royal Air Force station, RAF Mildenhall, as well as RAF Lakenheath, are located north of the town. Both are used by the United States Air Force as the headquarters of its 100th Air Refueling Wing and 352nd Special Operations Group. Mildenhall is often seen as the start of The Fens on the south/east.

West Suffolk District is a local government district in Suffolk, England. It was established in 2019 as a merger of the previous Forest Heath District with the Borough of St Edmundsbury. The council is based in Bury St Edmunds, the district's largest town. The district also contains the towns of Brandon, Clare, Haverhill, Mildenhall and Newmarket, along with numerous villages and surrounding rural areas. In 2021 it had a population of 180,820.