Guillaume-Jean-Noël de Lavillegris (Saint-Malo, 20 July 1752 – Paris, 21 January 1807) was a French Navy officer.
Lavillegris was born to a captain of the French East India Company.
In 1779, he joined the Navy as a reserve officer, taking part in the naval operations in the American Revolutionary War.
Quatorze Juillet burnt in an accident before her commissioning, and Lavillegris was suspended for not having been aboard at the time.
Lavillegris died of consequences of the wound sustained at the Battle of Cape Finisterre in Paris on 21 January 1807.