Star Wars: The High Republic: Midnight Horizon is a young adult novel written by Daniel José Older as part of the multimedia project Star Wars: The High Republic. It was published by Disney–Lucasfilm Press on February 1, 2022.

The novel is set in the High Republic era, 200 years before the events of the Star Wars prequel trilogy. It follows the adventures of a group of Jedi Knights and Padawans as they investigate a series of mysterious attacks on the Starlight Beacon, a new space station that is the center of the Republic's efforts to bring peace and prosperity to the galaxy.

Midnight Horizon is the third novel in the High Republic series, following Light of the Jedi and Rising Storm. It is a fast-paced and exciting adventure that will appeal to fans of Star Wars and young adult fiction alike.