Family name Philadelphie (Philadelphie 
) , all over the world, is an extremely rare cognomen. The cognomen Philadelphie is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Predominantly, Philadelphie is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Philadelphie | France, Democratic Republic of the Congo, United States |
| malchos de philadelphie historian and writer, SY (b. 450) |
|