Antoine-Louis Juchereau Duchesnay (French pronunciation: [ɑ̃twan lwi ʒyʃʁo dyʃɛnɛ]; February 18, 1767 – February 17, 1825) was a seigneur, soldier and political figure in Lower Canada.

He was born at Quebec City in 1765, the son of Antoine Juchereau Duchesnay, and studied at the Petit Séminaire de Québec.

He was named justice of the peace in 1813 and commander of the Beauport militia in 1816.

In 1821, Juchereau Duchesnay was named to the board of trustees for the Royal Institution for the Advancement of Learning.

His daughter Louise-Sophie married Bartholomew Conrad Augustus Gugy, who later served in the legislative assembly for the Province of Canada.