The Betrayer is a 1921 Australian-New Zealand lost film from director Beaumont Smith about an interracial romance between a white Australian man and a Māori girl.

Barris' wife (Bernice Vere) tells Manners the truth so he returns to New Zealand and is reunited with Iwa, this time as a romantic couple.

[3] The film was shot on location in Rotorua and Auckland, New Zealand, at Coogee Beach and the Wentworth Hotel in Sydney,[4] with about twelve cast and crew.

[6] Most stories of interracial romance at this time ended unhappily but this one finished with a white man marrying a Māori woman.

[8] In 1922, Smith re-edited the film for the British market, adding a racecourse scene and a chase between a car and a train, probably taken from his earlier movie, Desert Gold (1919).