Surname 西罗 (Ciro 
, 西罗 
, Sireau 
) , throughout the world, is a common cognomen. The last name 西罗 is habitual in Latin America and the Caribbean, particularly Mexico, where it is quite a common surname, Colombia, and Venezuela, where it is quite a rare surname. More prevalently, 西罗 is the forename as well as the last name.