Last name โอกาดะ (Okada 
, โอกาดะ 
) , around the globe, is a common cognomen. The family name โอกาดะ is habitual in Guam, where it is quite a common surname, Cayman Islands, and Paraguay, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Brazil, Japan, and the United States. Much less frequently, โอกาดะ is the forename as well as the last name.