| West Okement River | |
| Pushpin Map: | Devon#UK |
| Subdivision Type1: | Country |
| Subdivision Name1: | England |
| Subdivision Type2: | County |
| Subdivision Name2: | Devon |
| Length: | 21km (13miles) |
| Source1: | West Okement Head |
| Source1 Location: | Near Cranmere Pool |
| Mouth: | River Okement |
| Mouth Location: | Okehampton |
| Mouth Coordinates: | 50.794°N -4.022°W |
| Waterbodies: | Meldon Reservoir |
The West Okement is a river in north Dartmoor in Devon in south-west England. It rises at West Okement Head near Cranmere Pool and flows in a generally NW direction past Black-a-Tor Copse and into Meldon Reservoir. After exiting the reservoir it flows in a generally northeast direction towards Okehampton, where it joins the East Okement River to form the River Okement. Its total length is roughly 21km (13miles).[1] It is crossed by Meldon Viaduct.