IL-22

IL-22 or IL 22 or IL22 may refer to:


 * Interleukin 22
 * Illinois's 22nd congressional district, an obsolete district in the USA
 * Illinois Route 22, USA
 * Ilyushin Il-22, a Russian jet bomber aircraft prototype flown in 1947
 * Ilyushin Il-22, the airborne command post version of the Russian turboprop airliner Ilyushin Il-18