Cognomen Sansoi (Sansoi 
) , in the world, is a very rare last name. The family name Sansoi is habitual in Thailand, where it is a very rare surname, France, where it is an extremely rare surname, and India. Very seldom, Sansoi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sansoi | France, India, Spain, Thailand |