Westcott Bailey Clarke (September 27, 1886 – January 26, 1959), also known as Westcott Clarke, W.B. Clarke, Westcott B. Clarke and W.B. Westcott, was an American film actor and Broadway actor.

Clarke was born in Jersey City, New Jersey, on September 27, 1886. He appeared in 12 films during his career and was best known for his role in Safety Last! from 1923. Before 1922, he was active on Broadway. Clarke died in Los Angeles, California, in 1959. He is interred in Fort Rosecrans National Cemetery in San Diego, California.