Cognomen Uiboupin (Uiboupin 
) , all over the world, is a very rare last name. The family name Uiboupin is habitual in Northern Europe, particularly Estonia, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Uiboupin | Estonia |
| tõnis uiboupin Estonian biathlete, EE (b. 1988) |
|