Robert George Young  (February 22, 1907 – July 21, 1998) was an American television, film, and radio actor, best known for his leading roles as Jim Anderson, the father of Father Knows Best (NBC and then CBS) and as physician Marcus Welby in Marcus Welby, M.D. (ABC).

Young appeared in over 100 films between 1931 and 1952. After appearing on stage, Young was signed with Metro-Goldwyn-Mayer and, in spite of having a "tier B" status, he co-starred with some of the studio's most illustrious actresses, such as Katharine Hepburn, Margaret Sullavan, Norma Shearer, Joan Crawford, Helen Hayes, Luise Rainer, Hedy Lamarr, and Helen Twelvetrees. Yet, most of his assignments consisted of B movies, also known as "programmers," which required two to three weeks of shooting (considered very brief shooting periods at the time). Actors who were relegated to such a hectic schedule appeared, as Young did, in some six to eight movies per year.