Rab is an island and a town of the same name located just off the northern Croatian coast in the Adriatic Sea, today in the Primorje-Gorski Kotar county. The island was the frontier between Liburnia and Dalmatia.
The island is 22 km long, has an area of 93.6 km² and 9,480 inhabitants (2001). The highest peak is Kamenjak at 408 meters. The northeastern side of the island is mostly barren, karst, while the southwestern side is covered in green pine forests. The island is very popular nowadays with tourists and families for its beautiful beaches and many events, particularly the Rab arbalest tournament and Rab Medieval festival.
The main town on the island is also named Rab. It has 554 residents (2001) and is located on a small peninsula on the southwestern side of the island. Ferries connect the island of Rab with the mainland port of Jablanac and with the neighbouring island Krk.