Stewartfield is an area of the Scottish new town East Kilbride, in South Lanarkshire.
Stewartfield is home to the James Hamilton Heritage Park, which includes a man-made boating loch and is overlooked by Mains Castle, a 15th-century Category A listed building.
The National Museum of Rural Life may also be considered a part of Stewartfield, although it lies to the west of the main residential areas.
Both of these, however, lie north of the Stewartfield Way, the traditional northern boundary of East Kilbride.
A large sign bearing the name Stewartfield marks the area's western and eastern boundary.