Cognomen Ония (Oniya 
, Ония 
) , around the globe, is quite a rare last name. The family name Ония is characteristic of Nigeria, where it is a rare surname, the United Kingdom, where it is a very rare surname, and the United States, where it is an extremely rare surname. In absolute terms, it is commonest in Nigeria, India, and the United States. Likewise, Ония is the forename as well as the last name.