Surname Thoei (Tho 
, เทย 
, Thoei) , all around the world, is a common last name. The family name Thoei is habitual in Malaysia, where it is quite a common surname, Macao, and Maldives, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in South-eastern Asia, particularly Malaysia, Vietnam, and Indonesia. Likewise, Thoei is the forename as well as the last name.