Across the world, Siza (Siza 
, سيزا 
, Сіза 
) is quite a rare gender-neutral first name. The first name Siza is habitual in Tanzania, where it is quite a rare epicene name, South Africa, where it is quite a rare largely masculine, but seldom girly name, and United Arab Emirates, where it is a rare feminine name. Measured by absolute frequency, this name is the most popular in Sub-Saharan Africa, particularly Tanzania, South Africa, and Angola. Also, Siza is the last name as well as the forename.