Gregory John Puciato is an American musician best known as the former lead vocalist and lyricist of the metalcore band the Dillinger Escape Plan. In addition to being a solo artist, he currently fronts Better Lovers and the Black Queen, and is a member of Killer Be Killed, in which he also plays guitar. He also performs backup vocals on Jerry Cantrell’s solo tours. In 2018, Puciato and visual artist Jesse Draxler co-founded the art collective and record label Federal Prisoner.
Puciato is noted for the intensity of his live performances, wide vocal and stylistic range, outspoken views, and controversy stemming from his bands' performances and interviews. Rolling Stone said that "few singers live, breathe and often literally bleed their art like he does."