Cognomen Leclerc-De Sonis (Leclerc-De Sonis 
) , throughout the world, is an extremely rare surname. The last name Leclerc-De Sonis is characteristic of Western Europe, particularly France, where it is an extremely rare surname. Parts of the name also exists independently as a last name Leclerc.
| VARIANT | COUNTRY |
|---|---|
| Leclerc-De Sonis | France |