| Louise Thibault | |
| Honorific-Suffix: | MP |
| Riding: | Rimouski-Neigette—Témiscouata—Les Basques |
| Parliament: | Canadian |
| Term Start: | 2004 |
| Term End: | 2008 |
| Predecessor: | new riding |
| Successor: | Claude Guimond |
| Birth Date: | 28 May 1946 |
| Birth Place: | Montreal, Quebec, Canada |
| Party: | Independent |
| Otherparty: | Bloc Québécois (2004-2007) |
| Profession: | Public servant |
| Residence: | Rimouski, Quebec |
Louise Thibault (in French pronounced as /lwiz tibo/; born 1946) is a Canadian politician. Born in Montreal, Quebec, Thibault was a city councillor in Le Bic in 2003, then was elected into the House of Commons of Canada in the 2004 Canadian federal election for the Bloc Québécois in the riding of Rimouski-Neigette—Témiscouata—Les Basques. A former senior public servant, Thibault was the Bloc's critic of the Minister of Public Works and Government Services.
Thibault resigned from the Bloc Québécois caucus on April 12, 2007 and sat as an independent. She cited disputes with party leader Gilles Duceppe, principally over same-sex marriage. One of the more socially conservative Bloc MPs, she opposed a vote to reopen debate on the issue.[1] [2] She ran in the 2008 election as an independent, but was defeated by Claude Guimond, the new Bloc Québécois candidate.