Cognomen Daika (Daika 
) , in the entire world, is quite a rare surname. The cognomen Daika is characteristic of Japan, where it is quite a rare surname, Greece, where it is a rare surname, and India, where it is a very rare surname. In absolute terms, this name is the most popular in Japan, India, and Indonesia. Much less frequently, Daika is the forename as well as the last name.