Alexandre-René Chaussegros de Léry (March 26, 1818 – December 19, 1880) was a Quebec seigneur, lawyer and political figure.

He articled in law with Louis de Gonzague Baillairgé and was admitted to the bar in 1842.

In 1844, he married Catherine Charlotte-Éliza, the daughter of seigneur Antoine-Gaspard Couillard.

His daughter Catherine-Louise-Josephte became the second wife of Richard Alleyn, a member of the Quebec legislative assembly.

His brother Charles-Joseph was the mayor of Saint-François-de-la-Beauce and also served as warden for Beauce County.