Surname Sielvy (Sielvy 
) , globally, is a very rare last name. The family name Sielvy is characteristic of Western Europe, particularly France, where it is a very rare surname. More frequently, Sielvy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sielvy | France, Indonesia |
| sandra sielvy French politician, FR (b. 1972) |
|