Omen is the fourth studio album by the Norwegian Christian extreme metal band Antestor, released by Bombworks Records on November 16, 2012. Recording began in 2011, and was mostly conducted at the home of vocalist Ronny Hansen. The album cover is a painting by Polish artist Zdzisław Beksiński, and depicts a deformed, many-fingered humanoid creature playing a trumpet. Antestor met with critical praise for its musicianship and the progressive sound on the recording. Critics described the sound as primarily black metal, though the band prefers the more general term "extreme metal" to describe the sound on Omen.

Antestor is a Norwegian Christian extreme metal band formed in 1990 in Jessheim. Credited for starting the northern European Christian black metal scene, Antestor is the only Christian band to have an album released by Cacophonous Records, which has also released records by bands such as Dimmu Borgir, Sigh, and Cradle of Filth. The band's only release on Cacophonous, The Return of the Black Death, proved influential for the Christian black metal movement, and has sold over 10,000 copies.