Alphonse Island is the main, and also the most northernly, island of the Alphonse Atoll, in the Seychelles. The island is inhabted by workers of the new Alphonse Island Lodge. It was discovered on discovered on 28th January, 1730 by Chevalier Alphonse de Pontevez, commanding the French frigate Le Lys. A luxury hotel has been built on Alphonse Island, generating frequent traffic between other islands in the group. The area is 1.74 km².