Cognomen ตั้ม (Tam 
, Tum 
, Tamk 
) , all over the world, is a widespread surname. The last name ตั้ม is habitual in Macao, where it is a widespread surname, Hong Kong, and British Virgin Islands (explore the name in all countries). In absolute terms, it is the most numerous in Hong Kong, China, and India. Also, ตั้ม is the forename as well as the last name.