Cognomen นู (Nu 
, Noo 
, นู 
) , all around the world, is a widespread family name. The family name นู is characteristic of Mongolia, where it is a prevalent surname, Myanmar, where it is a common surname, and Macao, where it is quite a common surname. Not in comparison with a country's population, it is the most numerous in Myanmar, Mongolia, and China. Likewise, นู is the forename as well as the last name.