Duchesnay may refer to:

• Édouard-Louis-Antoine-Charles Juchereau Duchesnay (1809–1886), Conservative member of the Senate of Canada
• Antoine Juchereau Duchesnay (seigneur) (1740–1806), seigneur and political figure in Lower Canada
• Antoine-Louis Juchereau Duchesnay (1767–1825), seigneur, soldier and political figure in Lower Canada
• Elzéar-Henri Juchereau Duchesnay (1809–1871), seigneur, lawyer and political figure in Canada East
• Isabelle Duchesnay (born 1963), ice dancer who competed for both Canada and France
• Jean-Baptiste Juchereau Duchesnay (1779–1833), Canadian politician, officer, merchant, and seigneur
• Michel-Louis Juchereau Duchesnay (1785–1838), Canadian officer, seigneur, and justice of the peace
• Paul Duchesnay (born 1961), ice dancer who competed for both Canada and France

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