Globally, ארזו (Arzo 
, ארזו 
) is quite a rare unisex first name. The first name ארזו is habitual in Afghanistan, where it is a rare feminine name, Saudi Arabia, where it is a rare unisex name, and Ethiopia, where it is a rare boy's name. Not in comparison with a country's population, it is commonest in Afghanistan, Ethiopia, and Bangladesh. Likewise, ארזו is the last name as well as the forename.