Cognomen Leroy-Blanchard (Leroy-Blanchard 
) , all over the world, is an extremely rare surname. The surname Leroy-Blanchard is habitual in Western Europe, particularly France, where it is an extremely rare surname. Parts of the name also exists independently as a last name Leroy, and a last name Blanchard.
| VARIANT | COUNTRY |
|---|---|
| Leroy-Blanchard | France |