| Gulf of Piran | |
|---|---|
| Piran Bay | |
| Piranski zaliv (Slovene) | |
 Gulf of Piran | |
  Gulf of Piran  Gulf of Piran | |
| Location | Europe |
| Coordinates | 45°30′16″N 13°33′43″E / 45.50444°N 13.56194°E |
| Basin countries | Slovenia, Croatia |
| Surface area | 19 km2 (7.3 sq mi) |
| Settlements | Piran, Portorož |
| Location | |
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The Gulf of Piran or Piran Bay (Slovene: Piranski zaliv, Croatian: Piranski zaljev or Savudrijska vala, Italian: Baia di Pirano) is located in the northern part of the Adriatic Sea, and is a part of the southernmost tip of the Gulf of Trieste.