In White Wolf Game Studio's Vampire: The Masquerade books and role-playing games, a blood hunt is the persecution of a vampire by the rest of the vampiric society in order to kill him. Another name to a blood hunt is the word Amaranth, in reference to the flower. In the past, an Amaranth flower was given to a vampire who will be killed a week before the hunt began as a warning.

The blood hunt must be officially declared by the local prince. Once the order is given, it is customary to allow the vampire to flee the city. This mercy is extended until midnight, after which any vampire is free to hunt down and destroy the persecuted subject. On occasion, a reward might be offered to the one who delivers or kills the victim.

Any vampire who helps the subject of a blood hunt in any way is considered an accomplice and may himself become an additional target.

In some cases it is traditional to let the victim's sire, who is then allowed to perform diablerie on his childe, perform the execution.