There are mutliple artists that use this name:
1) A blues rock band from Ohio, United States
2) Actress/singer Raven-Symoné
3) A rapper from Australia
4) A rock band from Japan
5) A multi-instrumentalist from the Czech Republic
6) A rock band from New York, United States
7) A black metal band from Norway
8) A rock band from Germany
9) A heavy/speed metal band from the United Kingdom, formed in '74.
10) A doom metal band now known as Shape of Despair


Read more about Raven on Last.fm.