| Feildes Weir Lock | |
|---|---|
 The lock-keeper's cottage | |
 | |
| 51°45′49″N 0°00′47″E / 51.763574°N 0.012998°E | |
| Waterway | River Lee Navigation |
| County | Hertfordshire |
| Maintained by | Canal & River Trust |
| Operation | Manual |
| Length | 85 feet (25.9 m) |
| Width | 16 feet (4.9 m) |
| Fall | 5 feet (1.5 m) |
| Distance to Bow Creek | 19 miles (30.6 km) |
| Distance to Hertford Castle Weir | 7.3 miles (11.7 km) |
Feildes Weir Lock (No5) is a lock on the River Lee Navigation located in Hoddesdon.