Jean-Daniel Dumas (24 February 1721 – 2 August 1794) was a French officer in the Seven Years' War.

The French and Indians launched an attack on General Edward Braddock's column at the Battle of the Monongahela.

In the spring of 1750 he sailed to Bordeaux for Acadia as captain of a company of naval troops and was assigned to Fort Gaspareaux during its construction.

He commanded the French regular forces, militia, and Native Americans who defeated General Edward Braddock's British army at the Battle of the Monongahela on July 9, 1755.

[2] Commanding Fort Duquesne, after the reassignment of Claude-Pierre Pécaudy de Contrecœur, Dumas organized several Franco-Canadian raids with the Amerindian allies on the border of the province of Pennsylvania.