The Sheik is a 1921 American silent romantic drama film produced by Famous Players–Lasky, directed by George Melford, starring Rudolph Valentino and Agnes Ayres, and featuring Adolphe Menjou. It was based on the bestselling 1919 romance novel of the same name by Edith Maude Hull and was adapted for the screen by Monte M. Katterjohn. The film was a box-office hit and helped propel Valentino to stardom.

In the 1926 sequel The Son of the Sheik, Valentino played both the Sheik and his son, while Ayres reprised her role. A third film in the series, She's a Sheik, was produced in 1927 by Paramount and starred Bebe Daniels in a comedic role reversal of the original film.