Family name Seinet (Seinet 
) , worldwide, is a very rare cognomen. The surname Seinet is habitual in Switzerland, where it is a rare surname, Canada, where it is an extremely rare surname, and the United Kingdom. Not in comparison with a country's population, it is commonest in Switzerland, the United Kingdom, and France. Much less frequently, Seinet is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Seinet | Switzerland, United Kingdom, United States, France, Spain |