Family name Foisil (Foisil 
) , in the entire world, is a rare surname. The family name Foisil is characteristic of France, where it is a rare surname, Brazil, where it is an extremely rare surname, and the United States.
| henri foisil FR (b. 1849) |
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| louis foisil French poet (1880-1943), FR (b. 1880) |
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| madeleine foisil French historian, FR (b. 1925) |
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