Surname Syvain (Syvain 
) , throughout the world, is an extremely rare cognomen. The surname Syvain is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Much more prevalently, Syvain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Syvain | Canada, France, Democratic Republic of the Congo, United States |