Ólafur Arnalds (born 3 November 1986) is a BAFTA-winning multi-instrumentalist and producer from Mosfellsbær, Iceland. Ólafur Arnalds mixes strings and piano with loops and edgy beats crossing-over from ambient/electronic to pop. Ólafur was a drummer of hardcore / metal bands Fighting Shit and Celestine, as well as others.

In 2009, Ólafur also formed an experimental techno project, entitled Kiasmos, with Janus Rasmussen from the Icelandic electro-pop band Bloodgroup. In 2014 Ólafur announced his electronic debut album under the Kiasmos project.