Family name Manessy (Manessy 
) , in all the world, is an extremely rare last name. The last name Manessy is habitual in Northern America, particularly Canada, where it is a very rare surname. Likewise, Manessy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Manessy | Brazil, South Africa, Canada |
| gabriel manessy French linguist (b. 1923) |
|