Family name Pisoiu (Pisoiu 
) , in the world, is a very rare cognomen. The cognomen Pisoiu is characteristic of Austria, where it is a rare surname, Romania, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pisoiu | Romania, United States, Austria |
| daniela pisoiu DE (b. 1981) |
|