Non-Intentional Lifeform or simply N.I.L. were an Australian band formed in 1995 and signed to Roadrunner Records. Members included Andrew Day (guitar, vocals, trombone, mandolin, didgeridoo), Declan de Barra (vocals), Hywel Stoakes (bass) and Adam Pedretti (drums). They had a minor Australian hit with their single "Living or Existing?", which appeared in the popular Australian television series Good Guys Bad Guys, among others.