Kura or Kurkosa (Azerbaijani: Kür dili), also known as Kurinskiy in the Russian language, is the largest island of Azerbaijan.

It was named Kurkosa after the Kura River located further north by Fyodor Soimonov, the pioneering explorer of the Caspian Sea during the time of Peter I the Great.

Soimonov wrote the 'Pilot of the Caspian Sea', the first report on that until then little known body of water, that was published in 1720 by the Russian Academy of Sciences.

However, the rise of the Caspian Sea level cut Kura Island off from the mainland making communication problematic.

[2] Kura island is located 7.5 kilometers (4.7 mi) off the Kura Spit, the nearest point, and 10 kilometers (6.2 mi) to the east of the Kyzylagach Bay (Qızılağac Bay) shore.