Exumer is a German thrash metal band formed in Wiesbaden in 1985 by singer/bassist Mem V. Stein and guitarist Ray Mensh.

Exumer appeared for a one-off show at Wacken Open Air in 2001 and were reactivated by V. Stein and Mensh in 2008.

Their first album, Possessed by Fire (1986), is musically in the same vein as Into the Dark Past by the then-labelmates of Angel Dust.

Their second album, the following year's Rising from the Sea, is more influenced by Slayer due to the voice of Paul Arakari, which is similar to that of Tom Araya.

Soon after this album, the band broke up only to reform in the 2001 during the exhibition at Wacken Open Air.