Last name โกตัน (Kotan 
, โกตัน 
) , all over the world, is a common family name. The family name โกตัน is characteristic of Turkey, where it is quite a common surname, Hungary, where it is quite a rare surname, and Czechia, where it is a rare surname. In absolute terms, it is the most numerous in Turkey, Japan, and Indonesia. Very seldom, โกตัน is the forename as well as the last name.