1958 is a year in the 20th century.
- Wednesday, March 26: Biff Tannen turns 21 and uses the Grays Sports Almanac to successfully bet on a horse race and make his first million. (1985A)
- Sunday, December 7: Lorraine Baines and George McFly get married.
- Friday, May 16: Donald Fullilove (Goldie Wilson and Goldie Wilson III) is born in Dallas, Texas.
- Thursday, October 2: Jeffrey Weissman born.
- Friday, August 29: Michael Jackson is born.