Of Latin origin and meaning “lion,” which you’ll know to be true when she has one of those Target-aisle meltdowns in which the entire store can hear her roaring.
Lee, Leni, Leo, Oni.
Famous people named Leonie:
Writers Leonie Swann and Leonie Joubert; poet Leonie Adams; judge Leonie Brinkema; journalists Leonie Wood and Leonie Gilmour.
This name can be pronounced either lee-oh-nee or lay-oh-nee.