Family name ตุ๊ย (Tui 
, ตุ๊ย) , across the world, is quite a common cognomen. The cognomen ตุ๊ย 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 the most numerous in India, Malaysia, and Bangladesh. Also, ตุ๊ย is the forename as well as the last name.