Warhammer: Dark Omen is a fantasy real-time tactical wargame based upon the Warhammer Fantasy Battle table-top game and figurines, and is the sequel to the 1995 game Warhammer: Shadow of the Horned Rat. Developed by Mindscape, in conjunction with Games Workshop, and published by Electronic Arts, the game was released in Spring 1998 for Microsoft Windows and PlayStation. The game's story takes place within the Warhammer Fantasy setting, and focuses on the efforts of a mercenary army to combat a threat to the Old World by a vast army of undead forces led by a powerful entity that has recently arisen.

Warhammer is a tabletop miniature wargame with a medieval fantasy theme. The game was created by Bryan Ansell, Richard Halliwell, and Rick Priestley, and first published by the Games Workshop company in 1983.