Around the globe, Theriault (Theriault 
, Thériault ) is a very rare epicene given name. The forename Theriault is habitual in Eastern Asia, particularly China, where it is an extremely rare boy's name. Predominantly, Theriault is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Theriault | Canada, United States, Taiwan, New Zealand, France |
| Thériault | Canada, United States, New Zealand, France |