Daniel O'Sullivan (born 1980) is a British musician and composer, known for playing in bands Grumbling Fur, Guapo, Miasma & the Carousel of Headless Horses, Ulver, Sunn O))), Æthenor, Laniakea, Miracle, Mothlite, and This Is Not This Heat. He has also released solo work under his own name, and has collaborated with a number of artists including
Stephen O'Malley (also a member of Æthenor), Alexander Tucker, Kristoffer Rygg (Ulver), Jarboe and David Tibet.
