Oh Lucy! is a 2017 comedy-drama film directed, produced, and co-written by Atsuko Hirayanagi, based on her 2014 short film of the same name. It follows a lonely chain-smoking office drudge living in Tokyo who develops a crush on her English teacher and decides to follow him to Los Angeles when he disappears. However, she ends up in the United States with her sister and her niece, as well as her English teacher.

The film premiered in the Critics' Week section of the 2017 Cannes Film Festival, and was released theatrically in the United States on March 2, 2018.