Ogres are magical creatures. Ron and Hermione saw an ogre-like being in the Three Broomsticks, during their first trip to Hogsmeade on 31 October, 1993. The Weird Sisters reference to ogres in the song Do The Hippogriff.
While Ogres are never explicitly described,one possible hint about their appearance is given in Fantastic Beasts and Where to Find Them as Ghouls are described as looking like slimy,buck toothed Ogres. From this it can be assumed that Ogres bear a passing resemblance to Ghouls,but without the slimy skin or buck teeth. Presumably they are more intelligent than Ghouls as well.
- Harry Potter and the Prisoner of Azkaban (First mentioned)
- Harry Potter and the Goblet of Fire (film) (Mentioned only)
- Fantastic Beasts and Where to Find Them (real) (Mentioned only)