Last name Tharika (Tharika 
, ธาริกา , ฑาริกา ) , in the entire world, is quite a rare surname. The surname Tharika is characteristic of Sri Lanka, where it is quite a rare surname, Malaysia, where it is an extremely rare surname, and Thailand. Measured by absolute frequency, it is commonest in Sri Lanka, India, and Malaysia. More frequently, Tharika is the forename as well as the last name.