Kyl kyyak (or Kyl kiak, Qyl-qyiyak, Kiak, Kyyak; In Kyrgyz: кыл кыяк [qɯl qɯˈjɑq]) is a stringed musical instrument used in Kyrgyz music. The instrument is carved from a single piece of wood (typically apricot) and typically measures 60–70 cm. It has 2 strings, one to provide melody and the other resonance. The kyl kyyak is played vertically with a bow and can be played on horseback. The strings and bow are normally made from horse hair and many instruments feature a carved horse's head. This all reflects the importance of the horse in Kyrgyz rural culture.
See also Category:Kobyz (Kyl-kobyz) used in Kazakh, a related ancient string instrument.
For similar shaped instruments, see Category:Ghaychak (Persia), Category:Sarinda (India), Category:Sarangi (Nepali), etc.