Cognomen Clersaint (Clersaint 
) , in all the world, is a very rare surname. The last name Clersaint is habitual in Canada, where it is a very rare surname, the United States, and Brazil, where it is an extremely rare surname. Very seldom, Clersaint is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Clersaint | Brazil, United States, Canada |