This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Dhampir (Balkans)
In Balkan folklore, a dhampir is a mythical creature that is the result of a union between a vampire and a human. This union was usually between male vampires and female humans, with stories of female vampires mating with male humans being rare. Legends state that dhampirs were, for the most part, normal members of the community.
But dhampirs, especially male, of paternal vampire descent could see invisible vampires and practice sorcery, often starting careers as vampire hunters, which would be practiced for generations from father to son. Some traditions specify signs by which the children of a vampire can be recognized. Albanian legends state they have untamed dark or black hair and are very cunning or courageous in nature.