War Master is the third album by British death metal band Bolt Thrower.

It was recorded at Slaughterhouse studios in September 1990 and produced by Bolt Thrower and Colin Richardson.

This is also the final Bolt Thrower album to feature the blast beat style of drumming (which can be heard on four songs – "Unleashed (Upon Mankind)", "What Dwells Within", "War Master", and "Afterlife"), before it was abandoned and subsequently never used thereafter in the Bolt Thrower discography.

"Cenotaph" is a thematic continuation of the song "World Eater" from the previous record.

The album was extensively sampled on Dutch breakcore producer Bong-Ra's album Full Metal Racket, with allusions also including song titles such as "Bloody Cenotaph" and "Jo Bench".