Around the world, ทุย (Thui 
, ทุย , Tuii 
) is a rare unisex forename. The first name ทุย is habitual in Mauritius, where it is quite a rare epicene name, Vietnam, where it is a rare epicene name, and Thailand, where it is a very rare masculine name. Measured by absolute frequency, the name is most common in India, Vietnam, and Thailand. Likewise, ทุย is the last name as well as the forename.