The komuz or qomuz (Kyrgyz: комуз Kyrgyz pronunciation: [qoˈmuz], Azerbaijani: Qopuz, Turkish: Kopuz) is an ancient fretless string instrument used in Central Asian music, related to certain other Turkic string instruments, the Mongolian tovshuur, and the lute.

The instrument can be found in Turkic ethnic groups, from China to Turkey. Forms of this instrument are used in China by the Naxi people and are called Huobusi, Hebisi , and Hunbusi.

It is the best-known national instrument and one of the better-known Kyrgyz national symbols. The komuz is generally made from a single piece of wood (usually apricot or juniper) and has three strings traditionally made out of gut, and often from fishing line in modern times.

In the most common tunings the middle string is the highest in pitch.

Virtuosos frequently play the komuz in a variety of different positions: over the shoulder, between the knees and upside down.

An illustration of a komuz is featured on the reverse of the one-som note.

The komuz can be used either as accompaniment or as a lead instrument and is used in a wide variety of musical styles including aytysh (a song competition between akyns) and the recitation of epics. It is generally played seated, held horizontally and may be strummed or plucked.

One piece ("mash botoy") consists of a simple tune repeated many times, each with a new stroke, as a test of the performer’s skill and creativity. The komuz has many different tunings, and the names of the tunings correspond with various styles of music.