| Foul Bay | |
|---|---|
| خليج برنيس (Arabic) | |
  Foul Bay | |
| Coordinates | 23°41′N 35°37′E / 23.683°N 35.617°E |
| Ocean/sea sources | Red Sea |
| Basin countries | Egypt |
| Max. length | 30 km (19 mi) |
| Max. width | 28 km (17 mi) |
| Islands | Mukawwa Island, St. John's Island |
| Settlements | Berenice[1] |
Foul Bay (Greek: Akathartos Kolpos, "uncleaned bay"; Latin: Sinus Immundus, Arabic: خليج برنيس, romanized: khalij Baranis, lit. 'Berenice Bay') is a bay on the Egyptian side of the Red Sea, in the Red Sea Governorate.