Family name Shirō (شيرو 
, 四郎 
, Сиро 
) , across the world, is quite a rare surname. The family name Shirō is characteristic of Western Asia, particularly Syria, where it is quite a rare surname, Iraq, where it is a rare surname, and Lebanon. Not in comparison with a country's population, the name is most common in Syria, Iraq, and Egypt. Likewise, Shirō is the forename as well as the last name.