In all the world, 里卡 (Ricca 
, 里卡 
) is quite a rare principally girly, but very seldom male first name. The forename 里卡 is habitual in Indonesia, where it is a rare principally female, but very infrequently male name, Italy, where it is a rare mostly girly, but infrequently boy's name, and Philippines, where it is a rare feminine name. Likewise, 里卡 is the last name as well as the forename.