Blood magic may refer to:
- Blood ritual
- Blood Magic, an episode of the supernatural drama TV series Grimm
- Blood Magic Gang, a Russian serial killer gang.
- Blood Magic, the name of the original release of the computer game Dawn of Magic
- Blood Magic, a novel of the World of the Lupi series by Eileen Wilks
- Blood Magic, a 2001 horror story collection by Lucy A. Snyder
- Blood Magic, a mod for the video game Minecraft that allows players to perform rituals using blood and the souls of demons.