| Île Longue | |
| Location: | Indian Ocean |
| Coordinates: | -49.5333°N 123°W |
| Archipelago: | Îles Kerguelen |
| Area Km2: | 35.0 |
| Elevation M: | 270 |
| Highest Mount: | Pic d'Antoine |
| Country Admin Divisions Title: | Terres australes et antarctiques françaises |
| Country Admin Divisions Title 1: | District |
| Country Admin Divisions 1: | Îles Kerguelen |
| Population: | 0 |
Île Longue is one of the Kerguelen Islands situated near to the south-east coast of Grande Terre, the principal island.
The highest point is a mountain named Pic d'Antoine, at 270 metres.
Since 1950 the island hosts about 3500 free range sheep bred in order to provide fresh meat to the Port-aux-Français settlement.[1]