| Honorific-Prefix: | His Worship |
| Nicolas Dufour | |
| Honorific-Suffix2: | MP |
| Riding2: | Repentigny |
| Parliament2: | Canadian |
| Term Start2: | 2008 |
| Term End2: | 2011 |
| Predecessor2: | Raymond Gravel |
| Successor2: | Jean-François Larose |
| Office: | Mayor of Repentigny |
| Term Start: | November 15, 2021[1] |
| Predecessor: | Chantal Deschamps |
| Birth Date: | 1 June 1987 |
| Birth Place: | Montreal, Quebec |
| Party: | Bloc Québécois Avenir Repentigny |
Nicolas Dufour (born June 1, 1987) is a Canadian politician, who has been mayor of Repentigny, Quebec since the 2021 mayoral election. Previously, he represented the electoral district of Repentigny from the 2008 Canadian federal election until his defeat in 2011. He was a member of the Bloc Québécois.
Dufour was born in Montreal, Quebec. Elected at age 21, Dufour was the youngest member of the Canadian Parliament until his defeat in 2011.