Fernando Lamas (January 9, 1916 – October 8, 1982) was an Argentine actor and director.

He was born Fernando Alvaro Lamas in Buenos Aires. By 1942, he was an established movie star in Argentina. In 1951, he signed a contract with Metro-Goldwyn-Mayer and went to the United States to play "Latin Lover" roles.

Lamas was married four times, to Pearl Mux (married 1940-divorced 1944), Lydia Barachi (married 1946-divorced 1952), actress Arlene Dahl (married 1954-divorced 1960), and swimmer and actress Esther Williams (married 1969-his death 1982).

He and Mux had one daughter. He and Barachi had one daughter. And he and Dahl had one son, actor Lorenzo Lamas (born January 20, 1958).

Lamas directed for the first time in 1963. It was a Spanish movie titled Magic Fountain starring his wife Esther Williams. He was most active directing on television, doing episodes that included Mannix, The Violent Ones , Alias Smith and Jones, Starsky and Hutch and Falcon Crest. The latter show co-starred his son, Lorenzo.

Fernando Lamas died of cancer in Los Angeles, California.