I'll Buy You a Star is an album by American pop singer Johnny Mathis that was released on February 27, 1961, by Columbia Records and was the first of two album collaborations with arranger and conductor Nelson Riddle. This LP includes both ballads and swinging uptempo material throughout a mix of songs that range from the new to the familiar and obscure.

The album made its first appearance on Billboard magazine's album chart in the May 5, 1961, issue and reached number 38 during its 23 weeks there.

The first compact disc release of the album came on May 7, 1996, and included four bonus tracks that were recorded during the sessions for this album and originally released as singles or included on Mathis compilations. The same four tracks were included with this LP on disc one of the two-CD set released on June 9, 2009, while the other disc featured his 1962 project Live It Up!.