Blood magic

Blood magic may refer to:

Blood ritual, any ritual that involves the intentional release of blood
"Blood Magic", an episode of the TV series Grimm
Blood Magic Gang, a Russian serial killer gang
Blood Magic, the original title of the 2005 video game Dawn of Magic
Blood Magic, a 2010 novel in the World of the Lupi series by Eileen Wilks
Blood Magic, a 2001 short story collection by Lucy A. Snyder
Blood Magic, a Minecraft mod that allows players to perform magic using blood