Surname 三春 (三春 
, Miharu 
, Sanchun 
) , in all the world, is a rare cognomen. The cognomen 三春 is characteristic of Costa Rica, where it is quite a rare surname, Japan, where it is a very rare surname, and Indonesia. Measured by absolute frequency, it is the most numerous in China, Indonesia, and Japan. More prevalently, 三春 is the forename as well as the last name.