Eastwood has been married twice and has five daughters and two sons by five different women. He married college sweetheart Maggie Johnson on December 14, 1953. In the early 1960s, Eastwood began a secret affair with Roxanne Tunis, an extra on Rawhide which produced a daughter, Kimber, born on June 17, 1964. Over the years, Eastwood financially supported Kimber and her mother and would secretly visit them every 3–4 months. Kimber's existence was not made public until 1989. She is now a makeup artist and part time actress. She had a small role in her father's film, Absolute Power.

Clint and Maggie went on to have two children, Kyle Eastwood (born May 19, 1968) and Alison Eastwood, (born May 22, 1972). According to the unauthorized biography, Clint: The Life and Legend, Eastwood cheated with many lovers and was never faithful during their marriage. According to the couple's friends, Johnson preferred to stay in the dark, never suspecting her husband of cheating. They split in 1