Tracy S. Letts (born July 4, 1965) is an American actor, playwright, and screenwriter.

Donovan Letts (born 10 January 1956) is a British film director, disc jockey and musician.

Jack Abraham Letts (born 1995) is a Canadian Muslim convert, formerly of dual British-Canadian nationality, who has been accused of being a member of the Islamic State.

Billie Dean Letts (May 30, 1938 – August 2, 2014) was an American novelist and educator.

Barry Leopold Letts (26 March 1925 – 9 October 2009) was an English actor, television director, writer and producer, best known for being the producer of Doctor Who from 1969 to 1974.

Quentin Richard Stephen Letts (born 6 February 1963) is an English journalist and theatre critic.

(September 5, 1934 – February 22, 2008) an American college professor, and later, in a second career, an actor.