Thériault was elected as borough mayor of Mercier–Hochelaga-Maisonneuve in the 2005 municipal election, defeating Pierre Bélanger, a former Parti Québécois (PQ) cabinet minister who ran for MICU.
Lyn Hejinian | Lyn McClements | Lyn | Lyn St. James | Jean-Yves Thériault | SFK Lyn | Lyn Yvonne Abramson | Lyn Fotball | Lyn (Src family Kinase) | Lyn Nofziger | Lyn Lifshin | Lyn Larsen | Jodi Lyn O'Keefe | Jaime Lyn Bauer | Carly Lyn | Camille Thériault | Yves Thériault | Tara Lyn Hart | Lyn Swinburne | Lyn Jones | Lyn Hagan | Lyn (Gjøvik) | Lyn Collins | Lyn Allison | LYN | Jennifer Lyn Jackson | Jean-Yves Thériault (kickboxer) | Éric Thériault | Eric Theriault | Bruno Thériault |