Surname Онух (Onuh 
, Onuch 
, Онух 
) , around the world, is a common last name. The family name Онух is characteristic of Nigeria, where it is quite a common surname, Ghana, where it is a rare surname, and United Arab Emirates. Not in comparison with a country's population, it is commonest in Nigeria, Ghana, and Poland. Also, Онух is the forename as well as the last name.