Family name Guy-Joël (Guy-Joël 
) , around the globe, is an extremely rare surname. Much more prevalently, Guy-Joël is the forename as well as the last name. Parts of the name also exists independently as a first name Guy, and a first name Joël.
| VARIANT | COUNTRY |
|---|---|
| Guy-Joël | Democratic Republic of the Congo |
Cléret, Akendengué, and Kambassana