Le Mas Agenais XIII are a French Rugby league club based in Le Mas-d'Agenais, Lot-et-Garonne in the Aquitaine region.

The club plays in the Midi-Pyrenees regional League in the French National Division 2.

Home matches are played at the Stade Municipal Norbert Tessier.

Le Mas Agenais XIII have always played in the lower reaches of the French Rugby League system.

More recently they finished runner-up in the Midi-Pyrenees regional league in 2016.