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.

Ólafur's cousin Ólöf Arnalds is also a well known singer/songwriter.