Keith Provost (died 24 June 2001) was a Canadian actor. He is known for his work in The Beast of Bottomless Lake (2010), Trixie (2000), and Ignition (2001).
He attended the University of Victoria from 1982 to 1985. He studied acting in the BFA program in the Department of Theatre, and performed in many productions at the Phoenix Theatre. Keith's wife, Janet Baxter, also studied Theatre at UVic and obtained her BFA in 1986.
After studying at UVic, Keith moved to Vancouver where he became a well-respected and much-loved member of the acting and writing community. Over the fifteen-year span of his career, he took part in countless theatre, film, and television productions. He was a founding member of the Fend Players, co-produced the Cold Reading Series at the Anza Club in which playwrights workshop their scripts, and one of his screenplays was short-listed for the Praxis Spring Workshop 2000 competition. In 1996, he was a winner in Theatre BC's Annual Canadian National Playwriting Competition for his script The Exhumation of Ginger Cat. In 1997 he co-stared with Ed Asner in the film, Basil.