David O. Selznick, born David Selznick (May 10, 1902–June 22, 1965), was one of the iconic Hollywood producers of the Golden Age. He is best known for producing the epic blockbuster Gone with the Wind (1939) which earned him an Oscar for Best Picture. Not only did Gone with the Wind gross the highest amount of money in the U.S. domestic box office of any film ever (adjusted for inflation), but it also won seven additional Oscars and two special awards. Selznick also won the Irving G. Thalberg Memorial Award that same year. He would make film history by winning the Best Picture Oscar a second year in a row for Rebecca (1940).

Selznick was born to a Jewish family in Pittsburgh, Pennsylvania, the son of silent movie distributor Lewis J. Selznick and Florence A. (Sachs) Selznick.

David O. Selznick's real name was simply David Selznick. It is sometimes claimed that the "O" stands for Oliver, but, in fact, the initial was an invention of his. The book Memo from David O. Selznick starts with this autobiographical memoir: