Keith Allen (born 2 September 1953 in Swansea, Wales) is a British comedian, actor, singer and writer. He appeared inside the total of films manufactured by The Comic Strip Presents... (notably The Bullshitters, the parody of The Professionals) on Channel 4 in the early 1980s after becoming one of the breakthrough acts of the Comedy Store in 1979. A brother of comedian Kevin Allen, Keith Allen has done both straight & comedy acting. He appeared in the black comedy, Twin Town, the Channel Four adaptation of A Very British Coup and played the execution victim around Danny Boyle's thriller Shallow Grave (1994).

He occurs as member of Fat Les, a band which besides contains Britpop creative person Damien Hirst and Blur bassist Alex James. Allen is besides closely associated using a band New Order. He co-wrote their first number one individual, "World In Motion," & from time to time performed by having the two survive. Around 2005 he appeared in the Endemol produced BBC2 television programme Art School alongside Ulrika Jonsson, John Humphrys and Clarissa Dickson-Wright where he discovered the passion for painting.

Allen occurs as fan of Fulham F.C..