Surname ヨシカズ (Yoshikazu 
, ヨシカズ , Yosikazu 
) , around the world, is a common cognomen. The surname ヨシカズ is habitual in Japan, where it is quite a common surname, Singapore, where it is a rare surname, and Malaysia, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Japan, China, and Indonesia. Likewise, ヨシカズ is the forename as well as the last name.