Many races have originated upon Azeroth, including blood elves, dwarves, gnomes, high elves, humans, naga, night elves, tauren, and trolls. Ahough the orc race originated on the planet Draenor,it also has a substantial orc population.
Although they cannot by any stretch of the imagination be considered a single race, there are many undead creatures on Azeroth. In recent years their numbers have been increasing at an alarming rate.