Cognomen উ (U 
, উ) , in the entire world, is a widespread surname. The surname উ is characteristic of Mongolia, where it is a common surname, Macao, and Liechtenstein, where it is quite a common surname (explore the name in all countries). Not in comparison with a country's population, it is commonest in India, Indonesia, and China. More prevalently, উ is the forename as well as the last name.