École L'Odyssée is a public francophone high school in Moncton, New Brunswick, Canada. It is part of the province's Francophone Sud School District, offering education to students from grade nine to twelve. The school opened on September 30, 2005 as part of a $24.2 million project, alongside the adjoining middle school, École Le Mascaret. École L'Odyssée was conceived as a way to alleviate the overcrowding problem at École Mathieu-Martin in nearby Dieppe, a problem the district has had in the past. The Odyssée-Mascaret project, as well as the future Carrefour de l'Acadie middle school, replaced the former École Beauséjour and École Vanier complexes. This move allowed the Moncton Hospital to expand, while the Vanier establishment made way for medical offices. On September 9, 2009, the school was given permission to begin an $884,000 expansion for its far side, allowing for a larger space to be reserved for its infirmary and orientation center.