Nightmare

Nightmare may refer to:
*The character from 123 Slaughter Me Street
*The character from Danny Phantom
*The character from Dead By Daylight
*The character from Devil May Cry
*The character from Dungeons and Dragons
*The character from FNAF World
*The character from Kirby
*The character from Kirby: Right Back at Ya!
*The character from Marvel Comics
*The character from Metroid
*The character from Soul Calibur