Andrew Scott (born October 21, 1976) is an Irish actor. He made his first appearance on television in an advertisement for a brand of porridge at the age of 6. He received the Laurence Olivier Award for Best Performance in an Affiliated Theater for the play A Girl in a Car with a Man at Jerwood Theater Upstairs and the Irish Film and Television Award for Best Actor for the film Dead Bodies. He is best known for his role as Lieutenant Leslie in 1917 (2019) and Adam in All of us Strangers (2023). For the latter, he was nominated for a Golden Globe Award for Best Actor.

In November 2013, he announced that he was gay. Scott was ranked at No. 22 on The Independent's Rainbow List 2014.