École secondaire catholique Monseigneur-de-Charbonnel

École secondaire catholique Monseigneur-de-Charbonnel (occasionally called ESC MDC, ESC Charbonnel, or Charbonnel); known in English as Monseigneur Charbonnel Catholic Secondary School is a French-language Catholic elementary and high school operated by the Conseil scolaire catholique MonAvenir in the North York district of Toronto, Ontario, Canada.

It was part of Le Conseil des écoles catholiques du Grand Toronto (the Metropolitan Separate School Board) as the only French secondary school until 1998 when the board became the Toronto Catholic District School Board and its schools for francophones were transferred to the Conseil scolaire de district catholique Centre-Sud.

Located at the North York Board of Education's former Lewis S. Beattie Secondary School, the school is attached by the offices of CSDCCS. The school was named after Armand-François-Marie de Charbonnel, who was the Roman Catholic Bishop of Toronto from 1847 to 1860. Its motto is "Nos boom deducere".