| Chillerton Down | |
| Type: | Downland |
| Photo Width: | 240 |
| Map: | Isle of Wight |
| Map Width: | 240 |
| Location: | near Chillerton, Isle of Wight |
| Grid Ref Uk: | SZ 479 838 |
| Elevation M: | 167 |
Chillerton Down is downland between the villages of Shorwell and Chillerton, on the Isle of Wight, England.
The highest point of the hill is, and its prominence is . There is a trig point within 2 metres of the summit.[1] Part of Chillerton Down is a property of the National Trust.[2] Chillerton Down transmitting station is nearby.
Across a spur of the hill running north-east to south-west, there are earthworks, originally a rampart, thought to be an unfinished promontory fort of the Iron Age. The feature has been called the Five Barrows, because it has sunk in places, giving the appearance of separate mounds. The rampart is about long, wide and up to high, and there is a depression, formerly a ditch, on the south-west side.