How to Train Your Dragon Wiki
How to Train Your Dragon Wiki

The Vampire Dragon is a species of dragon mentioned in several books in the How to Train Your Dragon Book series.

Physical Description

Vampire Dragons seem to resemble bats, specifically vampire bats. They are small dragons with a pair of wings and one pair of legs. Their tail appears to be prehensile in images of this dragon. Vampire dragons come in several evening colors to blend in with the darkness - black, grey, and blue.


These nocturnal blood-sucking creatures will attack any large mammal such as reindeer, sheep or even humans. One Vampire alone cannot kill, but an attack by an entire vex is very often fatal. The victim does not wake up during an attack because the Vampire anesthetizes the skin before it bites.
  — Official How to Train Your Dragon Book Website  

Vampire Dragons bite with two elongated front teeth, and are able to drink blood with strong suction. Unlike most dragons, they do not have any particular defenses, though congregating in vexes is a form of group protection.

Vampire Dragons have the ability to speak Dragonese.


Vampire Dragons often attack in packs (called vexes, as noted in the info at right) that can reach up to millions at once, creating a blue-blackish cloud that can completely drain, wipe out and exterminate a whole herd of reindeer or a whole group of Vikings.

Super-large, extra thick mosquito nets and closed doors and windows are an effective way of keeping Vampire Dragons off a person. If you're camping, make sure to have extra thick tents.

Vampire Dragons remained unaligned during the Dragon Rebellion.


A Hero's Guide to Deadly Dragons

Vampire Dragons do not appear in this story, but an informational page does appear at the back of the book.

The Incomplete Book of Dragons

Vampire Dragons are listed in the 'Dragon Key' at the back of this reference book.


  • Yellow Vampires are mentioned in How to Speak Dragonese. It is not clear whether they are a different species or the same as this one.



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