Lau is a British folk band from both Scotland and England, formed in 2005.

Named after an Orcadian word meaning "natural light",[1] the band is composed of Kris Drever (guitar, vocals), Martin Green (accordion, piano, electronics) and Aidan O'Rourke (fiddle).

Their debut album, Lightweights and Gentlemen, was released through Reveal Records in 2007.

In 2010, the group recorded and released a five-track EP, Evergreen, in collaboration with singer-songwriter Karine Polwart.

They also appeared on the BBC show Later... with Jools Holland in 2012 where they performed the song "Torsa".