| Honorific-Suffix: | MLA |
| Isabelle Thériault | |
| Birth Place: | Miramichi, New Brunswick |
| Assembly1: | New Brunswick Legislative |
| Constituency Am1: | Caraquet |
| Term Start1: | September 24, 2018 |
| Predecessor1: | Hédard Albert |
| Party: | Liberal |
Isabelle Thériault is a Canadian politician, who was elected to the Legislative Assembly of New Brunswick in the 2018 election.[1] She represents the electoral district of Caraquet as a member of the Liberal Party. She was re-elected in the 2020 provincial election.