Krk is a Croatian island in the northern Adriatic Sea, located near Rijeka in the Bay of Kvarner and part of Primorje-Gorski Kotar county. Krk is the largest Adriatic island, with an area of 405.80 km² (156.68 sq mi), Krk is the most populous island in the Adriatic Sea, with multiple towns and villages that contain a total of 19,383 (2011) inhabitants.

Krk is like many Croatian islands, it is rocky and hilly. The rock is mostly karst. The southeast portion of the island is mostly bare as a result of the bora winds.

Some prominent features include:

• Obzova, the highest point at 568 msl
• Vela Luka a harbour on the southeastern end of the island