Belfield or similar terms may refer to:

• David Belfield (born 1950), American-born Iranian terrorist known later as Dawud Salahuddin, killer of Iranian critic Ali Akbar Tabatabai
• Fred Belfield (1876–1921), English football player
• Henry Conway Belfield (1855–1923), English civil servant
• Herbert Belfield (1857–1934), British Army officer and division commander
• Levi Bellfield (born 1968), English serial killer
• Mike Belfield (born 1961), English football (soccer) player and manager
• Robin Belfield, British theatre writer, director and producer
• William Belfield (1856–1929), American urologist

• Belfield, New South Wales, a suburb of Sydney
• Bellfield, Victoria, Australia, a suburb of Melbourne

• Belfield, Dublin, a suburban area in Ireland's capital, the location of University College Dublin
  • Belfield Bowl, an alternative name for UCD Bowl, a sports stadium in Dublin
  • Belfield Park, a football ground in Dublin
• Bellfield, County Westmeath, a village

• Belfield, Greater Manchester, an area of Rochdale, England
• Bellfield, East Ayrshire, Scotland
• Bellfields, a suburb of Guildford, Surrey, England

• Belfield, North Dakota, United States
• Belfield, Virginia, a former town now part of Emporia

• Belfield, Guyana, a village in the Demerara-Mahaica region of Guyana
• Ontario Highway 409, a short expressway that is also referred to as Belfield Expressway

• Belfield FM, University College Dublin's student radio station
• Belfield Estate, home of Charles Willson Peale and members of the Wister family in Philadelphia
• Belfield House, an 18th-century country house located at Weymouth, Dorset, England
• Bellfield (community centre), Edinburgh, Scotland