Family name Gersigny (Gersigny 
) , throughout the world, is a rare last name. The surname Gersigny is characteristic of Mauritius, where it is quite a rare surname, Madagascar, where it is a rare surname, and Australia, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Mauritius, Madagascar, and France.
| VARIANT | COUNTRY |
|---|---|
| Gersigny | South Africa, France, United Kingdom, Madagascar, Mauritius |