Sveinn Rúnar Sigurðsson (born 24 December 1976 in Reykjavík) is an Icelandic songwriter, music producer, and medical doctor, best known for having composed two Eurovision Song Contest entries for Iceland, "Heaven" by Jónsi in 2004 and "Valentine Lost" by Eiríkur Hauksson in 2007. He has also composed music for Chinese action film "Wings Over Everest".