The meridian 48° 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 48th meridian east forms a great circle with the 132nd meridian west.
Starting at the North Pole and heading south to the South Pole, the 48th meridian east passes through:
| Co-ordinates | Country, territory or sea | Notes |
|---|---|---|
| Arctic Ocean | ||
| Island of Alexandra Land, Franz Josef Land | ||
| Barents Sea | Cambridge Channel | |
| Island of Zemlya Georga, Franz Josef Land | ||
| Barents Sea | Passing just west of the island of Kolguyev, | |
| Passes through the center of the city of Astrakhan, Russia | ||
| Caspian Sea | ||
| The meridian runs parallel to the border with Iran, which is about 3km to the east | ||
| Persian Gulf | Kuwait Bay | |
| Passing through Kuwait City | ||
| Indian Ocean | Gulf of Aden | |
| Indian Ocean | Passing just east of Astove Island, | |
| Indian Ocean | ||
| Southern Ocean | ||
| Antarctica | Australian Antarctic Territory, claimed by | |