A vampire group is called a coven.
It is actually called a 'Brood'.
Brood - A group of vampires gathered around a leader (usually their sire).
Sire - The parent-creator of a vampire, used both as the female and male form.
A brood may (over a long time!) become a 'clan' by virtue of lineage, bloodline.
Clan - A group of vampires who share certain mystic and physical characteristics.
A 'coven' is only correctly used in terms of witches... --noun: an assembly of witches,esp. a group of thirteen. However since more people know more about witches than vampires and since 'coven' also means 'gathering/assembly', the word coven are sometimes (wrongly) used for a group of vampires too.
In the game Warhammer Fantasy Battle, there were two groups of playable Undead. One group was called Tomb Kings and the other group was the called Vampire Counts.
A group that hunts and slays vampires is commonly referred to as a "vampire slayer" or "vampire hunter." These individuals are often portrayed in popular culture such as in TV shows, movies, and books.
Colony. In the middle ages it was called a Murder and crows often got confused with bats so they both were termed "murder".
Flying groups of bats are called colonies.
The Volturi.
The Volturi
Vampire Knight
I is called: Vampire Diaries #1: The Awakening
The volturi which are the enforcers of the vampire laws.
The vampire usagi is a pureblood vampire the so called "Kurazaki-hime"!!!
its called my sister the vampire
There is no tarot card called "The Vampire" but there is a set called "The Vampire Tarot of the Eternal Night" which references non-conventional decks which represent a vampire theme.