Jonathan Nolan (born June 6, 1976) is a British-American screenwriter, television producer, director, and author. He is the creator of the CBS science fiction series Person of Interest (2011–2016) and co-creator of the HBO science fiction Western series Westworld (2016–present).

Nolan has collaborated on several films with his brother, director Christopher Nolan, who adapted Jonathan's short story "Memento Mori" into the neo-noir thriller Memento (2000). Together, the brothers wrote the screenplay for the mystery thriller The Prestige (2006), the superhero films The Dark Knight (2008) and The Dark Knight Rises (2012), as well as the science fiction film Interstellar (2014).

Nolan was nominated for an Academy Award for Best Original Screenplay for Memento, as well as a Primetime Emmy Award for Outstanding Writing for a Drama Series and Outstanding Directing for a Drama Series for Westworld, among a number of other awards.