Melchor Gastón Ferrer (August 25, 1917 – June 2, 2008) was an American actor, director, and producer, active in film, theatre, and television. He achieved prominence on Broadway before scoring notable film hits with Scaramouche (1952), Lili (1953), and Knights of the Round Table (also 1953). He starred opposite his wife, actress Audrey Hepburn, in War and Peace (1956) and produced her film Wait Until Dark (1967).

Beginning in the 1970s, Ferrer acted extensively in Italian films and appeared in several cult hits, including The Antichrist (1974), The Black Corsair (1976) and Nightmare City (1980). He was also a co-founder of the La Jolla Playhouse.