Ólöf Arnalds (born 1980 (1980)) is an Icelandic singer/songwriter and indie musician who has been active within the Icelandic music scene for quite some time. Apart from doing her own music as of lately and being a touring member of Múm since 2003 (2003), she has cooperated with bands and artists such as Stórsveit Nix Noltes, Mugison, Slowblow and Skúli Sverrisson. Between 1988 and 2002 Ólöf studied violin and classical singing, and in 2002-2006 she studied composition and new media at Iceland Academy of the Arts.
In 2007 (2007) her debut album Við Og Við was released by 12 Tónar. The album features a set of songs performed mostly in a traditional troubadour style.
Ólöf has since been working (with Sigur Rós' Kjartan Sveinsson, just as on Við Og Við) on her second album which was completed in late 2009 and is scheduled for release during the spring 2010.