Mark Anthony Fenwick (born May 1948) is a British businessman, the fifth generation of his family to run the Fenwick department store chain founded in 1882.

Mark Anthony Fenwick was born in May 1948.^[1] He was the son of John Fenwick, who died in 2008, at age 99, and who ran the firm from 1972; having joined it in 1932 after graduating from Cambridge University, and his wife Sheila.^[2] He has a brother, James Fenwick.^[2]

Fenwick has been the manager of pop music acts Roxy Music, T. Rex and is currently Roger Waters', of Pink Floyd fame, manager.^[3] and was a director of E.G. Records.

Fenwick stepped down as chairman of Fenwick on 18 May 2017, when he was succeeded by Richard Pennycook, a former CEO of The Co-operative Group.^[4] He ceased to be a director in August 2017.^[5]