Ariane Forster (Munique, 17 de janeiro de 1962 – Los Angeles, 20 de outubro de 2010) mais conhecida como Ari Up foi uma cantora alemã membro do grupo de punk inglês The Slits.
Slits, The – Return Of The Giant Slits CBS, 1981
New Age Steppers – The New Age Steppers, On-U Sound, 1981
Slits, The – The Peel Sessions Strange Fruit, 1987
V/A – Lipstick Traces Rough Trade, 1993
V/A – Rough Trade Shop, Post Punk 01 (2xCD, Comp) Mute, 2003
Ari Up – True Warrior / I'm Allergic (7") For Us, 2004
Slits, The – Live At The Gibus Club Earmark, 2005
Ari Up – Baby Mother (12") Collision: Cause Of Chapter 3, 2005
Ari Up – Dread More Dan Dead (CD) Collision: Cause Of Chapter 3, 2005
V/A – Girl Monster (3xCD, Comp) Chicks On Speed Records, 2006
Slits, The – Revenge Of The Killer Slits 7" S.A.F. Records, 2006
Dubblestandart vs. Ken Boothe vs. Ari Up – When I Fall In Love / Island Girl (12", Ltd) Collision: Cause Of Chapter 3, 2007
Slits, The – Trapped Animal Narnack Records, 2009
Subatomic Sound System Meets Ari Up* & Lee Scratch Perry – Hello, Hello, Hell Is Very Low / Bed Athletes (7") Subatomic Sound, 2010