Cognomen Synne-Cathrine (Synne-Cathrine 
) , in all the world, is an extremely rare surname. Much more frequently, Synne-Cathrine is the forename as well as the last name. Parts of the name also exists independently as a first name Synne, and a first name Cathrine.
| VARIANT | COUNTRY |
|---|---|
| Synne-Cathrine | Norway |