The Rainbow is a 1929 American synchronized sound pre-Code Western film directed by Reginald Barker and starring Dorothy Sebastian, Lawrence Gray and Sam Hardy.

[1] While the film has no audible dialog, it was released with a synchronized musical score with sound effects using both the sound-on-disc and sound-on-film process.

The soundtrack was recorded using the Tiffany-Tone process using RCA Photophone equipment.

The film featured a theme song entitled "The Song of Gold" which was composed by Jimmie V. Monaco and Edgar Leslie.

This 1920s Western film–related article is a stub.