Number 24 is a Norwegian biographical feature film from 2024 about the Norwegian resistance fighter Gunnar Sønsteby. The film is directed by John Andreas Andersen and produced by Motion Blur. It dramatizes several of the Oslo Group's sabotage operations and assassinations during World War II, and is framed by an elderly Sønsteby giving a lecture to school students in Rjukan, where he recounts the events he participated in during the war.

The film follows Sønsteby from the campaign in 1940 and throughout World War II. Sjur Vatne Brean plays the lead role as the young Sønsteby during the war, while Erik Hivju plays an older version of the war hero.

The film was written as an original spec script by first-time writer Espen von Ibenfeldt and later purchased by Motion Blur. The film premiered on October 30, with special pre-premieres in Flekkefjord on October 22, Oslo on October 23, and Rjukan on October 24, 2024. The title of the film is the same as the most well-known code name used by Gunnar Sønsteby.

It became available on the streaming platform Netflix in 2025, where it was the most-streamed film in Norway during its opening weeks.