Surname 训 (Tuan 
, 训 , 훈 
) , in all the world, is a common cognomen. The last name 训 is habitual in Malaysia, where it is quite a common surname, Vietnam, and Macao. Not in comparison with a country's population, this name is the most popular in Vietnam, Malaysia, and China. More frequently, 训 is the forename as well as the last name.