Michel-Amable Berthelot Dartigny (August 10, 1738 – May 10, 1815) was a lawyer, judge, notary and political figure in Lower Canada.
In 1779, he helped found the Communauté des Avocats, an early lawyer's society in the province.
Berthelot Dartigny was named judge of the Court of Common Pleas for Quebec district in 1791.
He ran unsuccessfully for a seat in the Legislative Assembly of Lower Canada for Quebec County in 1792; he was declared elected in 1793 when Ignace-Michel-Louis-Antoine d'Irumberry de Salaberry chose to represent Dorchester in the assembly.
Berthelot Dartigny opposed the bill which disallowed judges from sitting in the assembly.