École secondaire catholique l'Essor is a publicly funded separate, French-language high school located in Tecumseh, Ontario, Canada, established in 1979. It serves the Francophone population of Essex County. The name l'Essor, coined by local resident Florence Limoges, is a portmanteau combining "Essex" and "Windsor". Essor also refers to the French word "to take flight". The school belongs to the Conseil scolaire catholique Providence.
The small school participates in a wide variety of local activities in the Francophone community. A notable example is the Franco Bowl, an annual football match against neighboring Windsor's French Catholic high-school, École secondaire E.J. Lajeunesse. The school has a very high percentage of graduates and high test scores.
Coordinates 42°18'49.417" N -82°51'50.541" E