The meridian 151° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 151st meridian west forms a great circle with the 29th meridian east.
Starting at the North Pole and heading south to the South Pole, the 151st meridian west passes through:
| Co-ordinates | Country, territory or sea | Notes | |
|---|---|---|---|
| Arctic Ocean | |||
| Beaufort Sea | |||
| Alaska | |||
| Cook Inlet | |||
| Alaska — Kenai Peninsula | |||
| Pacific Ocean | |||
| Huahine island | |||
| Pacific Ocean | |||
| Southern Ocean | |||
| Antarctica | Ross Dependency, claimed by |