Metfield is a village and civil parish in the Mid Suffolk district, in Suffolk, England, but its name is derived from Medefeld or 'Meadow feld'. It is situated close to the border with Norfolk, being approximately 5 miles south east of Harleston and 7 miles north west of Halesworth. The population was estimated to be 370 in 1996, increasing to 388 at the 2011 Census.