The Blood Fetish Vampire or blood fetishist is a human person who derives intense erotic/sexual arousal or satisfaction from the taste, sight, or feel of human blood.

Blood fetishists may or may not be bona fide HLV's, or be interested in actually drinking or tasting blood. Other also combine vampire lifestyle and may bleach their skin lighter, sleep in coffins, or have their teeth capped to create fangs.

Sex blood freaks are often found in the BDSM subculture, where their specific activities may be referred to as "bloodplay" or "bloodsports". These generally involve BDSM scenes that include bloodletting with razor blades or other implements but the amount of blood involved is almost always very small, and cuts seldom penetrate the dermis of the skin.

Other fetishists practice bloodletting as an expression of trust, intimacy and bonding, apart from specifically erotic aspects. They may become donors for sanguinarians.