| Nightmares | |
| Type: | ep |
| Artist: | Omen |
| Cover: | Omen_Nightmares_cover.jpg |
| Genre: | Heavy metal |
| Label: | Metal Blade (US) Roadrunner (Europe) |
| Producer: | Omen |
| Prev Title: | The Curse |
| Prev Year: | 1986 |
| Next Title: | Escape to Nowhere |
| Next Year: | 1988 |
Nightmares is the first EP by American heavy metal band Omen. It was originally released in 1987 by Metal Blade. It was later included as bonus tracks on the 1989 re-issue of Warning of Danger and the 1996 re-issue of The Curse.