The Infidel is a 1922 American silent drama film written and directed by James Young and featuring Katherine MacDonald, Robert Ellis, Joseph Dowling and Boris Karloff.

Lola Daintry (MacDonald), an unemployed actress and infidel hired to play a part in a scheme by Australian "Bully" Haynes (MacDowell) and a sailor named Chunky (Force) are cast upon the South Sea island of Menang, where are found Cyrus Flint (Ellis), who owns the copra produced from coconuts, and a missionary named Reverend Mead (Dowling).

Cyrus is attracted to the young woman and shields her from the attentions of the Nabob of Menang (Boris Karloff), the island's Mohammedan ruler.

She entreats Cyrus to return to Menang and to send a radio message to an American cruiser to suppress an uprising on the island.

Cyrus reaches his secret radio, which brings the cruiser to the rescue, which lobs a few shells causing the palace of the Nabob to topple, killing him.