Cognomen Firly (Firly 
) , around the globe, is quite a rare last name. The surname Firly is characteristic of Indonesia, where it is quite a rare surname, and France, where it is a very rare surname. More frequently, Firly is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Firly | France, United States, Singapore, Indonesia, Philippines |
| frédéric firly French association football player, FR (b. 1973) |
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| justine firly French association football player, FR (b. 1994) |
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