Surname 奥巴马 (Obama 
, 奥巴马 
) , across the world, is quite a common cognomen. The surname 奥巴马 is characteristic of Sub-Saharan Africa, particularly Equatorial Guinea, where it is a common surname, Cameroon, where it is quite a common surname, and Gabon, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Sub-Saharan Africa, particularly Cameroon, Equatorial Guinea, and Kenya. Much less frequently, 奥巴马 is the forename as well as the last name.