The meridian 38° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Europe, Asia, Africa, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 38th meridian east forms a great circle with the 142nd meridian west.
Starting at the North Pole and heading south to the South Pole, the 38th meridian east passes through:
| Co-ordinates | Country, territory or sea | Notes |
|---|---|---|
| Arctic Ocean | ||
| Queen Victoria Sea | ||
| Barents Sea | ||
| Kola Peninsula | ||
| White Sea | ||
| Onega Peninsula | ||
| White Sea | Onega Bay | |
| Passing just east of Donetsk | ||
| Sea of Azov | Taganrog Bay | |
| Sea of Azov | ||
| Black Sea | ||
| Red Sea | ||
| Island of Talla Talla | ||
| Red Sea | ||
| Indian Ocean | Passing just east of the Prince Edward Islands, | |
| Southern Ocean | ||
| Antarctica | Queen Maud Land, claimed by | |