The igil, also called ikhel (Mongolian: ихэл, Tuvan: игил), is a two-stringed musical instrument from Tuva. It is played by bowing the strings. In Western Mongolia, it is sometimes called "ikili." The instrument's neck and sound box are usually made from a single piece of pine or larch. The top of the sound box may be covered with skin or a thin wooden plate. The strings and bow are traditionally made from horsehair, but sometimes nylon is used. Like the morin khuur of Mongolia, the igil often has a carved horse's head at the top of the neck. Both instruments are called horsehead fiddles.

The igil is played nearly upright, with the sound box resting in the performer's lap or against the top of their boot. To play, the performer touches the strings with their nails or fingertips but does not press them against the neck. The igil has no frets, and the bow is held with an underhand grip.

In the past, the igil had its own special type of music, with songs played only on this instrument. During the communist period in Tuva, people tried to change the igil to make it more like a European cello. However, most Tuvan musicians today use the original version of the instrument and its traditional playing style.

Famous igil players include Ak-ool Kara-sal, Andrei Chuldum-ool, Kaigal-ool Khovalyg, Igor Koshkendei, Mongun-ool Ondar, Aldar Tamdyn, Radik Tulush, and Evgenii Saryglar.

A similar instrument called "ıklıg" is found in western Turkey. It is played by the Yoruks and is slowly becoming more popular again. In Mongolian, "ikhel" means "great."