Tongo Island (Albanian: Ishulli i Tongos) is an island on the Ionian Sea, in southern Albania, near the border with Greece.

Tongo is a small rocky island located at the entrance to the bay of Ftelia, on the southernmost end of the Albanian Ionian coast.

Situated at a distance of 300 m (980 ft) from the coast, it has a length of 250 m (820 ft), a width of 100 m (330 ft) and a total surface area of 2.5 ha (6.2 acres).

In the south-east of the island, about 50 m (160 ft) away from its shore, the state border of Albania with Greece passes.

The island is rich in aquatic life and can easily be explored by boat.