Family name Iercosan (Iercosan 
) , across the world, is a rare last name. The surname Iercosan is habitual in Romania, where it is quite a rare surname, Spain, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Iercosan | Romania, United States, Spain |
| diana alexandra iercosan Ph.D. University of Maryland College Park 2011 |
|