Selim I Giray, Selim Khan Girai (Crimean Tatar: I Selim Geray, Turkish: 1. Selim Giray) was a Crimean khan (1631–1704). He reigned four times between 1671 and 1704.
Crimean khans were the direct descendants of Genghis Khan, the Mongol Emperor. After the death of Genghis Khan (1227) the empire was partitioned and the part in East Europe and Northwest Asia was named Golden Horde. The Golden Horde khans embraced Islam. That region which was also called Desht-i Qipchaq was the home of Kypchak Turks and the khanate was a Turkified. In the early 15th century Golden Horde was further partitioned. One of the parts was the Crimean Khanate founded in and around the Crimean Peninsula, modern Ukraine in 1441. Giray was the name of the dynasty of khans. However, after partitioning, the parts of the khanate were no longer the major powers in East Europe steps and in 1478 Crimean Khanate had to accept the suzerainty of the Ottoman Empire. Being the main Moslem vassal of the empire, Crimean Khanate had a privileged status in the Ottoman Empire.
In 1671 Selim ascended to throne as the 25th khan. In 1672 he was assigned to join Ottoman army during the Polish–Ottoman War (1672–76) in which he was successful in the conquest of Bar, Ukraine (then a part of Polish–Lithuanian Commonwealth). However he failed in his next mission during the siege of Chyhyryn (modern central Ukraine) in 1677. He was dethroned.