Around the world, Siyo (Siyo 
) is quite a rare epicene first name. The first name Siyo is habitual in Ethiopia, where it is a rare unisex name, Indonesia, and South Africa, where it is a very rare dominantly male, but uncommonly feminine name. Measured by absolute frequency, it is commonest in India, Indonesia, and Ethiopia. Also, Siyo is the last name as well as the forename.