Family name Louisy-Louis (Louisy-Louis 
) , in the world, is a rare surname. The family name Louisy-Louis is habitual in France, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Louisy-Louis is the forename as well as the last name. Parts of the name also exists independently as a last name Louisy, and a first name Louis.
| VARIANT | COUNTRY |
|---|---|
| Louisy-Louis | United States, France |