Biohazard 1

Biohazard 1 may refer to:


 * Resident Evil (1996 video game), the PlayStation video game, later re-released on several other platforms
 * Resident Evil (2002 video game), the GameCube remake, later re-released on several other platforms
 * Resident Evil (film), the first live-action film in the Resident Evil series, released in 2002
 * Resident Evil: Degeneration, the first CG film in the Resident Evil series, released in 2008
 * Biohazard level 1, category to distinguish the severity of biological agents