Initium is the 1984 debut album by American deathrock band Samhain, released on lead singer Glenn Danzig's independent record label Plan 9.

In various interviews, Danzig stated that the album's title, which translates from Latin to English as "beginning", represents his new start after disbanding his prior band, Misfits, in 1983.

The 1986 cassette release features Initium plus the entire original version of the band's follow-up record, the Unholy Passion EP, and is highly prized by collectors.

(In 1989, these extra tracks were removed from all future CD pressings, and were instead included on the original 1990 Final Descent album).

Likewise, some copies of the 2001 Initium reissue also feature the song "Unholy Passion" as an unlisted bonus track.