Family name コスモス (Cosmos 
, コスモス 
) , in all the world, is a widespread cognomen. The surname コスモス is characteristic of Sub-Saharan Africa, particularly Nigeria, where it is quite a common surname, Ghana, where it is quite a rare surname, and Namibia. Measured by absolute frequency, this name is the most popular in Nigeria, Ghana, and Brazil. Likewise, コスモス is the forename as well as the last name.