William Abbott (12 June 1790 – 7 June 1843) was a theatrical manager, based in England, and the United States. Abbott worked with the Haymarket Theatre in London, where he first appeared as "Frederick" in an 1809 production of Lovers' Vows. He also worked in America, where he first appeared as "Mr. Beverly" in an 1832 production of The Gamester at the Park Theatre in New York. Later he moved to Charleston, South Carolina, where he created the New Charleston Theatre and operated it from 1837 through 1841. This theatre brought theatrical stars like Ellen Tree, Booth, Cooper, and Vandenhoff to Charleston. He also maintained a repertory company there.