Mark Andrew "Barney" Greenway is a British extreme metal vocalist who is the current lead singer and primary lyricist of Napalm Death and a former member of Extreme Noise Terror and Benediction.

Napalm Death are an English grindcore band formed in Meriden, West Midlands in 1981. None of the band's original members have been in the group since 1986, but since Utopia Banished (1992), the lineup of bassist Shane Embury, guitarist Mitch Harris, drummer Danny Herrera and lead vocalist Mark "Barney" Greenway has remained consistent through most of the band's career. From 1989 to 2004, Napalm Death were a five-piece band after they added Jesse Pintado and Mitch Harris as replacements for guitarist Bill Steer. Following Pintado's departure, the band reverted to a four-piece.