Cognomen ทานาคา (Thanaka 
, Tanakas 
, ทานาคา ) , in the world, is a rare last name. The cognomen ทานาคา is characteristic of Greece, where it is a very rare surname, Singapore, and Thailand. In absolute terms, it is commonest in Indonesia, Thailand, and India. Likewise, ทานาคา is the forename as well as the last name.