John Scot Barrowman, MBE (born 11 March 1967), is a Scottish-American actor, singer, dancer, presenter and writer who holds both British and American citizenship. Born in Glasgow, Scotland, he emigrated to the United States with his family in 1975. Encouraged by his high school teachers, Barrowman studied performing arts at the United States International University in San Diego before landing the role of Billy Crocker in Cole Porter's Anything Goes at London's West End.

Since his debut in professional theatre, Barrowman has played lead roles in various musicals both in the West End and on Broadway, including Miss Saigon, The Phantom of the Opera, Sunset Boulevard and Matador. After appearing in Sam Mendes' production of The Fix, he was nominated for the 1998 Laurence Olivier Award for Best Actor in a Musical and, in the early 2000s, returned to the role of Billy Crocker in the revival of Anything Goes. His most recent West End credit was in the 2009 production of La Cage aux Folles.