Dan Sheridan (born Daniel Marvin Sheridan on September 3, 1916 in Athlone, Ireland - died June 29, 1963 in Encino, Los Angeles, California) was an Irish-American actor who appeared in more than thirty-five television series between 1957 and his death at the age of forty-six in 1963. He was cast in forty-one episodes of the ABC/Warner Brothers western series, Lawman, starring John Russell and Peter Brown.