Last name Philadelphia (Philadelphia 
, Filadelfi 
) , throughout the world, is a rare surname. The surname Philadelphia is characteristic of Hungary, where it is quite a rare surname, Canada, where it is a very rare surname, and Greece. Not in comparison with a country's population, it is the most numerous in Hungary, the United States, and Canada. More frequently, Philadelphia is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Philadelphia | Jordan, Philippines, United States, South Africa, India |
| Filadelfi | Italy, Canada, Hungary, Argentina, United States |
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hermogenes of philadelphia ancient Greek Olympian, TR (b. 100) |
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| tryphon of philadelphia ancient Olympic victor, TR (b. 100) |
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| nicomachus of philadelphia ancient Greek olympic victor in stadion, TR (b. 200) |
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| philumenus of philadelphia ancient olympics victor, 4th century AD, TR (b. 400) |
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| theoleptos of philadelphia Byzantine monk, Metropolitan of Philadelphia (1283/4–1322) and Eastern Orthodox theologian (b. 1250) |
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jacob philadelphia American magician, US (b. 1735) |
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| marion philadelphia German author, DE (b. 1960) |
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| zenon of philadelphia soldier, JO |
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| r. wright of philadelphia American artist, active approximately 1800 |
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| eutyches of philadelphia |
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Of, Hodapp, Mokoena, Shields, Shipman, Sithole, Sparnroft, Andrade, Dichabe, Ngobeni, Ngwenya, Howells, Fellows, Wilkens, Seraphin, Anderson, Casemiro, Johnston, Tsotetsi, Vilakazi, Quinones, Buthelezi, Ndlovu, Lawyer, Gumede, Gadson, Say, Uni, Lane, Tiro, Welz, Shoop, Silva, Sedio, Berro, Brock, Gianpaoli, Khoza, Twala, Novak, Nkosi, House, Mabaso, Molefe, Mkhize, Church, Bowler, Radebe, Rizon, and Tshabalala