Welcome to Harry Potter Answers. What would you like to know?

I'm going to say no, probably not, although that is an interesting idea.

No, they're native to earth. Rowling has confirmed that when large numbers collect in especially dark, miserable, and damp places, new dementors simply grow, like a fungus.

It is likely they are classified as spirits, rather than beings, since they do not appear to be truly alive.

Dementors live in places where there'd despair, and they reproduce quickly in such places, but sometimes (like after the Second Wizarding War), when there is a lot of hope and happiness all over the place, dementors decrease in number.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.