Family name Lablanc (Lablanc 
) , in the world, is a rare last name. The family name Lablanc is habitual in the United States, where it is a rare surname, Canada, where it is a very rare surname, and New Zealand. Not in comparison with a country's population, it is the most numerous in the United States, Canada, and France.
| VARIANT | COUNTRY |
|---|---|
| Lablanc | Canada, France, Venezuela, New Zealand, United States |