Last name Окадзаки (Okazaki 
, Окадзаки) , in all the world, is quite a rare surname. The surname Окадзаки is habitual in Paraguay, where it is quite a rare surname, Singapore, where it is a rare surname, and Japan. In absolute terms, it most frequently occurs in the United States, Japan, and Brazil. Very seldom, Окадзаки is the forename as well as the last name.