Cognomen ひろあき (Hiroaki 
, ひろあき) , around the world, is quite a rare last name. The last name ひろあき is habitual in Japan, where it is quite a rare surname, Belgium, where it is a rare surname, and Singapore. In absolute terms, this name is the most popular in Japan, China, and Malaysia. Likewise, ひろあき is the forename as well as the last name.