David Oswald Nelson (October 24, 1936 – January 11, 2011) was an American actor, director, producer. He was the elder son of bandleader/TV actor Ozzie Nelson and singer Harriet Hilliard and the older brother of singer Eric "Ricky" Nelson.
Nelson, along with his brother and their parents, appeared on the long-running sitcom The Adventures of Ozzie and Harriet in the 1950s and 1960s. During the run of the series, Nelson directed several episodes. After the series' end, he continued acting, directing and producing. His last film appearance was in Cry-Baby (1990). For his contribution to the motion picture industry, Nelson was honored with a star on the Hollywood Walk of Fame at 1501 Vine Street, on May 9, 1996.
He attended Hollywood High School and was a member of Kappa Sigma fraternity while attending the University of Southern California.