Cognomen Lefleur (Lefleur 
) , in all the world, is a rare surname. The cognomen Lefleur is characteristic of South Africa, where it is a very rare surname, Belgium, and New Zealand. Not in comparison with a country's population, it is the most numerous in the United States, South Africa, and France.
| VARIANT | COUNTRY |
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| Lefleur | Canada, France, United States, United Kingdom, South Africa |
| louis lefleur American soldier (1762-1833), US (b. 1762) |
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| lefleur rs researcher |
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| walter lefleur |
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