Cognomen Ooooo (Ooooo 
, Ооооо 
) , all over the world, is a rare last name. The last name Ooooo is characteristic of New Zealand, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Russia. In absolute terms, it is the most numerous in China, Russia, and Kazakhstan. Much less frequently, Ooooo is the forename as well as the last name.