Throughout the world, 毅夫 (Yifu 
, 毅夫 ) is quite a rare male first name. The forename 毅夫 is habitual in China, where it is a rare male name, and the United States, where it is an extremely rare predominantly masculine, but scarcely girly name. Very seldom, 毅夫 is the last name as well as the forename.