Family name Potter-Fallon (Potter-Fallon 
) , in the world, is an extremely rare cognomen. The cognomen Potter-Fallon is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Potter, and a last name Fallon.
| VARIANT | COUNTRY |
|---|---|
| Potter-Fallon | United States |