Anna Puu (born Anna Puustjärvi; February 3, 1982 in Outokumpu, Finland) is a Finnish pop singer. She placed second in Finland's Idols 2008 competition.

Puu's first album, Anna Puu, was released on April 29, 2009 and reached #1. The first single, "C'est la vie", was released in mid-April and reached #1 in Finland. Another single, "Kaunis päivä", reached #6 on the Finnish charts, but the last single "Melankolian riemut" failed to make an impact on the charts. The album has since sold over 60,000 copies.