Riot Girl is the debut studio album by Japanese singer/voice actress Aya Hirano.

It was released on 16 July 2008.

It contains songs from her entire non-character song discography up until her 2008 single, "Unnamed World."

It contains 7 all-new songs and the A-side songs from her first 7 singles (with the exception being the B-side of Unnamed World instead of the A-side).

The album made its debut on the Oricon charts at number 6, selling approximately 23,000 units in its first week of sales.