The Desert Song is a 1929 American pre-Code sound (All-Talking) operetta film directed by Roy Del Ruth and starring John Boles, Carlotta King, Louise Fazenda, and Myrna Loy. It was photographed partly in two-color Technicolor, the first film released by Warner Bros. to include footage in color. The film included a 10-minute intermission during which music was played.

It was based on the hit musical play with music by Sigmund Romberg and book and lyrics by Oscar Hammerstein, Otto Harbach, and Frank Mandel, which opened at the Casino Theatre on Broadway on November 30, 1926, and ran for a very successful 465 performances. Although some of the songs from the show have been omitted, the film is otherwise virtually a duplicate of the stage production and extremely faithful to it.

On the basis of the success of The Desert Song, Warner Bros. quickly cast John Boles in an all-color musical feature called Song of the West, which was completed by June 1929 but had its release delayed until March 1930.