IL or Il may refer to:
Illinois (/ˌɪlᵻˈnɔɪ/ IL-i-NOY) is a state in the Eastern region of the United States, achieving statehood in 1818. It is the 6th most populous state and 25th largest state in terms of land area, and is noted as a microcosm of the entire country.
The Ilyushin Il-76 (NATO reporting name: Candid) is a multi-purpose four-engine turbofan strategic airlifter designed by the Soviet Union's Ilyushin design bureau.
Illusory superiority is a cognitive bias whereby individuals overestimate their own qualities and abilities, relative to others.
Illmatic is the debut studio album by American rapper Nas. It was released on April 19, 1994, by Columbia Records.