Pisces Iscariot is a compilation album by American alternative rock band the Smashing Pumpkins, released in 1994 through Virgin Records, consisting of B-sides and outtakes. Reaching number 4 in the US upon its 1994 release, Pisces Iscariot was certified platinum by the RIAA on November 23, 1994. The album was initially to be called Neptulius.

The Smashing Pumpkins are an American alternative rock band from Chicago. Formed in 1988 by frontman and guitarist Billy Corgan, bassist D'arcy Wretzky, guitarist James Iha, and drummer Jimmy Chamberlin, the band has undergone several line-up changes since their reunion in 2006, with Corgan being the sole constant member since its inception. The current lineup features Corgan, Chamberlin, and Iha.