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Cognomen Isle (Isle
, Ille
, Yle
) , in all the world, is quite a rare family name. The cognomen Isle is characteristic of Romania, where it is quite a rare surname, Czechia, and Croatia. Not in comparison with a country's population, this name is the most popular in Germany, the United States, and Romania. Much less frequently, Isle is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Isle | India, France, United States, Democratic Republic of the Congo, Germany |
| Ille | India, France, United States, Romania, Germany |
| Yle | India, France, United States, China, Algeria |
| เกาะ | Thailand |