In the world, Ildefonse (Ildefonse 
) is an extremely rare unknown gender forename. Also, Ildefonse is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ildefonse | France, Democratic Republic of the Congo, United States |
|
ildefonse rousset French journalist (1817-1878), FR (b. 1817) |
|
| ildefonse ayer Swiss Franciscan biblical scholar (1886-1968), CH (b. 1886) |
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| ildefonse dirks |
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| ildefonse flandin |
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