| L. Norbert Thériault | |
| Birth Date: | 16 February 1921 |
| Birth Place: | Eel River Bridge, New Brunswick |
| Office: | Senator for New Brunswick |
| Appointed: | Pierre Trudeau |
| Term Start: | March 26, 1979 |
| Term End: | February 16, 1996 |
| Office2: | Member of the Legislative Assembly of New Brunswick |
| Term2: | 1960–1979 |
| Party: | New Brunswick Liberal Association |
L. Norbert Thériault (February 16, 1921 – June 19, 2016) was a Canadian politician.
He was born in Eel River Bridge, New Brunswick, Canada. He represented Northumberland (1960–1974) and Baie-du-Vin (1974–1979) in the Legislative Assembly of New Brunswick, and was a provincial cabinet minister in New Brunswick in the 1960s.He was appointed to the Senate of Canada on March 26, 1979 on the advice of then-Prime Minister Pierre Elliott Trudeau, and served until his 75th birthday on February 16, 1996.
His son Camille Thériault also served a member of the Legislative Assembly of New Brunswick, and was premier of New Brunswick from May 14, 1998 until June 21, 1999.
Thériault died on June 19, 2016.[1]