Surname שנה (Chesnais 
, שנה) , all over the world, is quite a rare last name. The family name שנה is characteristic of France, where it is quite a rare surname, Denmark, where it is a very rare surname, and Australia. Not in comparison with a country's population, it is the most numerous in France, Germany, and the United States. Much less frequently, שנה is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chesnais | Democratic Republic of the Congo, United Kingdom, France, Germany, United States |