Family name Guilbeault (Guilbeault 
) , throughout the world, is quite a rare last name. The last name Guilbeault is habitual in Canada, where it is quite a rare surname, New Zealand, where it is a rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Guilbeault | Belgium, United States, Canada, France, New Zealand |
|
steven guilbeault Canadian environmentalist and politician, CA (b. 1970) |
|
| luce guilbeault Canadian actress, CA (b. 1935) |
|
|
| douglas guilbeault researcher |
|