Cognomen ธัญมิกา (Thanmika 
, Thunmika , ธัญมิกา ) , throughout the world, is an extremely rare family name. The surname ธัญมิกา is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, ธัญมิกา is the forename as well as the last name.