Five Days One Summer is a 1982 American romantic drama film directed and produced by Fred Zinnemann from a screenplay by Michael Austin, based on the 1929 short story Maiden, Maiden by Kay Boyle. Set primarily in the Alps, the story focuses on Douglas Meredith (Sean Connery) and his lover Kate (Betsy Brantley) as they embark on a mountain climbing trip, which unravels their relationship due to Kate's feelings for their mountain guide (Lambert Wilson) as well as a dark secret that looms over the couple.

Five Days One Summer was Zinnermann's final film before his death. The film was a commercial and critical failure.