Donald O'Connor
- Birth Date
- 8/28/1925 - 9/27/2003
- Birth Place
- Chicago, Illinois, USA
- Known For
- Acting

Donald O’Connor was an American dancer, singer, and actor who came to fame in a series of movies in which he co-starred alternately with Gloria Jean, Peggy Ryan, and Francis the Talking Mule. He is best known today for his role in Singin' in the Rain.
