Last name Quanthi-Yanick (Quanthi-Yanick 
) , globally, is an extremely rare cognomen. Much more frequently, Quanthi-Yanick is the forename as well as the last name. Parts of the name also exists independently as a first name Quanthi, and a first name Yanick.
| VARIANT | COUNTRY |
|---|---|
| Quanthi-Yanick | Democratic Republic of the Congo |