Cognomen Дэюй (Deyu 
, Дэюй) , in the world, is a rare surname. The cognomen Дэюй is characteristic of Romania, where it is quite a rare surname, Ethiopia, where it is a rare surname, and Singapore, where it is a very rare surname. Not in comparison with a country's population, the name is most common in Ethiopia, Romania, and China. More frequently, Дэюй is the forename as well as the last name.