Olivier Adam (born 12 July 1974) is a French author and screenwriter. His debut novel Je vais bien, ne t’en fais pas (Don't worry, I am fine) was adapted into the eponym film. He also writes books for young adults, among them La messe anniversaire. Adam won the 2004 Prix Goncourt de la Nouvelle for Passer l'hiver.

He grew up in the Paris suburbs and now lives in Brittany near Saint-Malo. He participated in the creation of the literary festival Correspondence Manosque. Also a screenwriter, he has participated in writing Don't Worry, I'm Fine (2006) and Welcome (2009).