Family name ตุ่ย (Tui 
, ตุ่ย) , in the entire world, is quite a common cognomen. The surname ตุ่ย is habitual in Fiji, where it is quite a common surname, Malaysia, where it is quite a rare surname, and Estonia. In absolute terms, it is commonest in India, Malaysia, and Bangladesh. Likewise, ตุ่ย is the forename as well as the last name.