- Inthraced (Melodic Death Black-Finland) - Other name : ex-Instinct
- Instinct (UK) (Black Metal-United-Kingdom)
- Instinct (NL) (Thrash Metal-Netherlands)
- I.O.S. (Death Grind-Brazil) - Other name : Instinct of Suicide
- Instinct Of Survival (Crust-Germany) - Other name : IOS, ex-Sperrzone
- InstinctHate (Thrash Metal-Austria)
- Instincts (Dark Ambient-Canada)