| Uchiura Bay | |
|---|---|
 Uchiura Bay | |
  Uchiura Bay  Uchiura Bay | |
| Location | Hokkaido, Japan |
| Coordinates | 42°20′N 140°35′E / 42.333°N 140.583°E |
| Ocean/sea sources | Pacific Ocean |
| Basin countries | Japan |
| Surface area | 2,485 square kilometers (959 sq mi) |
| Average depth | 93 meters (305 ft) (average maximum depth) |
The Uchiura Bay (内浦湾, Uchiura-wan) or Funka Bay (噴火湾, Funka-wan, Eruption Bay) is a bay southeast of the island of Hokkaido in northern Japan. It has also been known as Iburi Bay and Volcano Bay.