Five Days One Summer is a 1982 American romantic drama film produced and directed by Fred Zinnemann and written 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 Zinnemann's final film before his death. It was released in the United States on November 12, 1982, by Warner Bros., and was a commercial and critical failure.