French Island is the largest coastal island of Victoria, Australia, located in Western Port, 61 km southeast of Melbourne. In 1997 about 70 per cent of the island was declared the French Island National Park, and is listed in the register of the National Estate. The island is an unincorporated area and declared locality of Victoria.French Island is relatively isolated and undeveloped. There are no mains water, mains electricity, or medical services on the island. There is one small general store and post office located on Tankerton Road about 3 km from Tankerton Jetty. Many of the locals actively promote environmental tourism. There is a range of accommodation, including camping, bed and breakfast, guesthouse and farmstay.