Across the world, Iwashiro (Iwashiro , Ивасиро ) is an extremely rare unknown gender first name. Very seldom, Iwashiro is the last name as well as the forename.
Iwagi, Iwajo, Iwaki, イワシロ, and 岩城
Koichi, Shimizu, and Watanabe
, Ивасиро 
) is an extremely rare unknown gender first name. Very seldom, Iwashiro is the last name as well as the forename.