Family name Susau (Susau 
) , worldwide, is a rare surname. The cognomen Susau is characteristic of Fiji, where it is quite a rare surname, Malaysia, where it is a rare surname, and Nigeria, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Fiji, Malaysia, and India. Likewise, Susau is the forename as well as the last name.