Cognomen 罗伊娜 (Rowena 
, 罗伊娜) , in the entire world, is quite a rare last name. The surname 罗伊娜 is characteristic of Kuwait, where it is a rare surname, Taiwan, and Hong Kong. Not in comparison with a country's population, it most frequently occurs in Taiwan, Indonesia, and Malaysia. Much more frequently, 罗伊娜 is the forename as well as the last name.