Worldwide, Fiso (Fiso 
, Fiss 
) is a rare largely masculine, but seldom female first name. The first name Fiso is habitual in Georgia, where it is a rare girly name, the Democratic Republic of the Congo, where it is a rare male name, and South Africa, where it is a rare gender-neutral name. Measured by absolute frequency, it is the most numerous in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, South Africa, and Nigeria. More frequently, Fiso is the last name as well as the forename.