The Kiznaiver Original Soundtrack (キズナイーバー オリジナルサウンドトラック,Kiznaībā Orijinaru Saundotorakku?) is a compilation of musical scores composed by Yuki Hayashi for the Kiznaiver anime series. The discs came as bonus purchase privileges for those who bought certain BD&DVD releases of the anime and are not currently available for physical purchase individually. The OST has a total of two soundtrack albums.