In the entire world, Кассия (Kassia 
, Cássia 
, Кассия 
) is a common feminine forename. The given name Кассия is characteristic of Brazil, where it is quite a rare feminine name, Angola, and Portugal, where it is a rare girly name. Measured by absolute frequency, it is commonest in Brazil, Angola, and the United States. Much less frequently, Кассия is the last name as well as the forename.