Family name Yuii (Yuii 
, Юий 
, Юйи ) , around the globe, is a rare surname. The last name Yuii is characteristic of South-eastern Asia, particularly Malaysia, where it is a very rare surname, Myanmar, and Thailand. Not in comparison with a country's population, the name is most common in South-eastern Asia, particularly Indonesia, Myanmar, and Malaysia. Likewise, Yuii is the forename as well as the last name.