Surname クワシマ (クワシマ ) , across the world, is an extremely rare family name. Much more frequently, クワシマ is the forename as well as the last name.
Kuwashima, Kwashima, and Kwasima
カズヤ, ススム, マコト, and テツロウ
) , across the world, is an extremely rare family name. Much more frequently, クワシマ is the forename as well as the last name.