IL or Il may refer to:
Illinois (/ˌɪlᵻˈnɔɪ/ IL-i-NOY) is a state in the midwestern 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 often noted as a microcosm of the entire country.
The Illuminati (plural of Latin illuminatus, "enlightened") is a name given to several groups, both real and fictitious.
The illegal drug trade is a global black market dedicated to the cultivation, manufacture, distribution and sale of drugs that are subject to drug prohibition laws.
The Iliad (/ˈɪliəd/; Ancient Greek: Ἰλιάς Ilias, pronounced [iː.li.ás] in Classical Attic; sometimes referred to as the Song of Ilion or Song of Ilium) is an ancient Greek epic poem in dactylic hexameter, traditionally attributed to Homer.
Illegal immigration is the entry of a person or a group of persons across a country's border, in a way that violates the immigration laws of the destination country, with the intention to remain in the country.
Illegal immigration to the United States is the violation of United States immigration laws by foreign nationals who enter the country without government permission (i.e., a visa) or, after lawful admittance, remain within the country beyond their period of authorized admission.
Illusory superiority is a cognitive bias whereby individuals overestimate their own qualities and abilities, relative to others.
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.
The Illegals Program, as it was called by the United States Department of Justice, was a network of Russian sleeper agents under non-official cover whose investigation by the Federal Bureau of Investigation (FBI) culminated in the arrest of ten agents and a prisoner swap between Russia and the United States on July 9, 2010.