The name Leonid is a boy's name of Russian origin meaning "lion". Leonid and is often added to lists like Russian Baby Boy Names and discussed in our forums with posts like "A brother or sister for little Jack or Olivia".
From the experts:
This form got noticed as the first name of long-reigning Russian president Brezhnev; other bearers include playwright and short-story writer Andreyev, Leonid the Magnificent,a Russian performance artist on America's Got Talent, and Leonid McGill, the protagonist of a Walter Mosley private eye series. All in all, though, Leonid is not the most likely to join the pride of lion-related names here.