| River Key | |
|---|---|
 Key at Purton Stoke | |
| Location | |
| Country | England |
| Counties | Wiltshire |
| Physical characteristics | |
| Source | |
| • location | Purton, Braydon Forest |
| • coordinates | 51°35′11″N 1°51′57″W / 51.58639°N 1.86583°W |
| Mouth | River Thames |
• location | Cricklade |
• coordinates | 51°38′22″N 1°51′27″W / 51.63944°N 1.85750°W |
The River Key is a tributary of the River Thames in England which flows through Wiltshire.