Vampire Hunter D (吸血鬼ハンターD, Kyūketsuki Hantā Dī?) is the title character of a series of novels by Japanese horror and pulp author Hideyuki Kikuchi.

Beginning in 1983, Kikuchi has so far written 17 "D" novels, illustrated by Final Fantasy series designer Yoshitaka Amano. The first and third books were adapted into internationally released anime movies (licensed in the USA by Urban Vision), reaching a minor cult status in the U.S.; the first ten novels are now available in English from DH Press, the prose division of Dark Horse Comics. On November 17, 2007, Digital Manga Publishing released an English manga based on the first book followed by a second volume adapting the second book on July 25, 2008. The third volume is set to hit in Fall 2008, possibly coinciding with the 11th English adaptation of the novel series. At least two art books, a survival-horror video game, Japanese-language audio dramas, and various other official (as well as fan-based) memorabilia exist based upon the Vampire Hunter D series.

Source: Wikipedia