Cognomen Potomak (Potomak 
) , in the world, is a rare family name. The cognomen Potomak is characteristic of Austria, where it is a rare surname, Czechia, and Canada, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Potomak | Austria, Canada, Czechia |
| sarah potomak Canadian ice hockey player (1997-), CA (b. 1997) |
|
|
| amy potomak ice hockey player (1999-), CA (b. 1999) |
|