William Warren (b. Bath, England, 10 May 1767; d. Washington, D.C., 19 October 1832) was an actor. His first appearance was as Young Norval in Home's tragedy of Douglas. Soon afterward, Warren came to this country, making his debut at Baltimore, Maryland, as Friar Lawrence in Romeo and Juliet. In 1805 he went to England, as agent for the Philadelphia Theatre, to collect a company of comedians, and on his return in 1806 he married the actress, Mrs. Ann Merry. Later, Warren became manager of the Chestnut Street Theatre in Philadelphia, Pennsylvania, where he made his last appearance on 25 November 1829 as Robert Bramble in the Poor Gentleman. His son, also named William Warren, was also an actor.