Stay as You Are (Italian: Così come sei), also known as Stay the Way You Are, is a 1978 erotic drama film, directed by Alberto Lattuada, starring Nastassja Kinski, Marcello Mastroianni, Barbara De Rossi, and Ania Pieroni. An Italian–Spanish co-production, it follows the May–December romance between a vivacious young college student and a middle-aged professional who is unhappy in his marriage.

New Line Cinema gave the film a limited theatrical release in the United States on 21 December 1979. The film was scheduled for release by Cult Epics in May 2015 on DVD and Blu-ray.