Family name origins & meanings
- French : from a pet form of the personal name Barthélemy (see Bartholomew) or possibly of any of the Germanic personal names mentioned at Bert. It is quite commonly found as a Huguenot name outside France.
- A Bertholet from Normandy is documented in Quebec city in 1659. Another, from the Anjou region of France, is recorded in Quebec city in 1674, with the secondary surname Le Loutre, as well as Du Veau, dit des Cormiers. Others originated in Paris and the Saintonge region; the secondary surname La Giroflée is also documented.