Surname Trai (Trai 
, ตรัย , トライ 
) , around the globe, is quite a rare cognomen. The last name Trai is characteristic of Macao, where it is quite a rare surname, Malaysia, where it is a rare surname, and Morocco. Not in comparison with a country's population, it is commonest in Algeria, Japan, and Malaysia. Also, Trai is the forename as well as the last name.