There are several artists using this name:
1) Boris (ボリス) are a Japanese experimental rock band formed in Tokyo in 1992. The band's original lineup consisted of Atsuo, Takeshi, Wata, and Nagata who was the band's original drummer. After his departure, Atsuo took over drums and the lineup has remained consistent to this day. Boris draw influence from a huge variety of styles including, but not limited to, psychedelic rock, punk, sludge, doom metal, drone, pop, noise, shoegaze, and ambient. The band's name is taken from a song on Melvins' album, Bullhead.

Read more about Boris on Last.fm.