The meridian 113° 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 113th meridian west forms a great circle with the 67th meridian east.
Starting at the North Pole and heading south to the South Pole, the 113th meridian west passes through:
| Co-ordinates | Country, territory or sea | Notes |
|---|---|---|
| Arctic Ocean | ||
| Northwest Territories — Borden Island | ||
| Wilkins Strait | ||
| Northwest Territories — Mackenzie King Island | ||
| Unnamed waterbody | ||
| Northwest Territories — Melville Island | ||
| Liddon Gulf | ||
| Northwest Territories — Melville Island | ||
| Parry Channel | Viscount Melville Sound | |
| Northwest Territories — Victoria Island | ||
| Prince Albert Sound | ||
| Northwest Territories — Linaluk Island and Victoria Island Nunavut — from on Victoria Island | ||
| Coronation Gulf | ||
| Nunavut — Lawford Islands | ||
| Coronation Gulf | ||
| Nunavut Northwest Territories — from, passing through the Great Slave Lake Alberta — from | ||
| Montana Idaho — from Utah — from, passing through the Great Salt Lake Arizona — from | ||
| Sonora | ||
| Gulf of California | ||
| Baja California Baja California Sur — from | ||
| Pacific Ocean | ||
| Southern Ocean | ||
| Antarctica | Unclaimed territory | |