Olbia
Olbia (Greek Ὀλβία ) is in geography:
- Olbia (Black Sea) , city on the northern Black Sea coast
- Olbia (Hyères) , Greek colony town in southern France
- Olbia (Sardinia) , city in Sardinia
- Olbia (Lycia) , city in Lycia
-
Olbia (Bithynia) , city on the Gulf of İzmit, possibly identical to Astakos
- Olbia (mythology) , a nymph, named for the Bithynian city
- Olbia (Cilicia) , city in the Cilicia
- Olbia (Libya) , city in Cyrenaica