Family name Guyón (Guyón 
) , around the globe, is an extremely rare cognomen. The last name Guyón is characteristic of Latin America and the Caribbean, particularly Argentina, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Guyón | Argentina |
| xavier guyón Doctorat d'Etat Université Paris-Sud XI - Orsay 1980 |
|