Cognomen สัณฐาน (Santhan 
, สัณฐาน , Sanhanuth ) , globally, is quite a rare last name. The cognomen สัณฐาน is characteristic of Laos, where it is quite a common surname, Qatar, where it is quite a rare surname, and United Arab Emirates, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Laos, India, and Sri Lanka. Likewise, สัณฐาน is the forename as well as the last name.