Pental Island is a rural locality in Victoria, Australia, bordering Swan Hill, Victoria in the north. It is an island bounded by the Murray River in the north and the Little Murray River in the south; the Little Murray diverging from the Murray at Fish Point and converging at Swan Hill. Pental Island is also a parish of the County of Tatchera and the boundaries of the three entities are identical. At the 2006 census, Pental Island had a population of 380.
Two bridges allow access to the island from Victoria, on Pental Island Road at Swan Hill in the west, and on Fish Point Road at Fish Point in the east. There are no crossings to the island over the Murray from New South Wales.