Family name 督 (Tok 
, 督 
) , throughout the world, is a common cognomen. The last name 督 is characteristic of Turkey, where it is quite a common surname, Singapore, and Brunei, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Turkey, Indonesia, and India. Much less frequently, 督 is the forename as well as the last name.