Old Winchester Hill is an Iron Age hillfort and nature reserve on the South Downs chalk ridge in Hampshire, England. The fort was probably built in the Early to Middle Iron Age (600-300 BC) and fell out of use around 150-100 BC. Within the fort are Bronze Age barrows dating to 2100-750 BC, all excavated during the Victorian period. The hilltop site features well-defined rampart entrances at east and west, with evidence of nearly 70 hut platforms identified through geophysical survey. Celtic field systems and trackways lie to the south. The chalk ridgeway passing the site has been used as a walkway for approximately 8,000 years. Since 2009 it has been part of the South Downs National Park.
Old Winchester Hill

| Type | Fortress/citadel |
|---|---|
| Period | 3000 - 1500 BC |
| Country | England |
| Coordinates | 50.9812° N, 1.0881° W |
England