Nine Lives (Norwegian: Ni Liv) is a 1957 Norwegian film about Jan Baalsrud, a commando and member of the Norwegian resistance during World War II. Trained in Britain, in 1943, he participates in an operation to destroy a German air control tower. The mission is compromised when he and his fellow soldiers accidentally make contact with a civilian, rather than a Resistance member, who betrays them to the Nazis.

The film was directed by Arne Skouen and is based on the book We Die Alone (1955) by British author David Howarth.

In 1958, the film was nominated for an Oscar for Best Foreign Language Film and was entered into the Cannes Film Festival. In 1991, Norwegian television audiences voted it the greatest Norwegian film ever made.