On Chesil Beach is a 2017 British drama film directed by Dominic Cooke (in his feature directorial debut) and written by Ian McEwan, who adapted his own 2007 Booker Prize-nominated novella of the same name. It stars Saoirse Ronan and Billy Howle and tells the story of virgins, Florence and Edward, and their first disastrous attempt at having sex on their wedding night. The initial experience and their differing responses to the failure have lifelong consequences for both.

The film had its world premiere in the Special Presentations section at the Toronto International Film Festival on 7 September 2017, and was released in the United States and United Kingdom in May 2018.