The meridian 50° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Europe, Asia, Africa, the Indian Ocean, Madagascar, the Southern Ocean, and Antarctica to the South Pole.
The 50th meridian east forms a great circle with the 130th meridian west.
Starting at the North Pole and heading south to the South Pole, the 50th meridian east passes through:
| Co-ordinates | Country, territory or sea | Notes |
|---|---|---|
| Arctic Ocean | ||
| Island of Zemlya Georga, Franz Josef Land | ||
| Barents Sea | Nightingale Channel | |
| Bruce Island (Franz Josef Land) | ||
| Barents Sea | Passing just west of Northbrook Island, | |
| Island of Kolguyev | ||
| Barents Sea | ||
| Caspian Sea | Passing just west of the Mangyshlak Peninsula, | |
| Absheron peninsula, passing just east of Baku | ||
| Caspian Sea | ||
| Persian Gulf | ||
| Passing just west of Dammam (at) | ||
| Indian Ocean | Gulf of Aden | |
| Indian Ocean | ||
| Indian Ocean | ||
| Île Sainte-Marie | ||
| Indian Ocean | Passing just west of the Western Group of the Crozet Islands, | |
| Southern Ocean | ||
| Antarctica | Australian Antarctic Territory, claimed by | |