Surname Piatkoff (Piatkoff 
) , globally, is a very rare last name. The last name Piatkoff is habitual in the United States, where it is a very rare surname, Argentina, where it is an extremely rare surname, and Brazil. Much less frequently, Piatkoff is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Piatkoff | Brazil, United States, Argentina |