IL

IL or Il may refer to:

Businesses and organizations

• Image-Line, a Belgian software company
• International League, Class Triple-A league in North American Minor League Baseball
• Ilyushin, a Russian aircraft manufacturer, whose aircraft are designated with "IL"
• Liberal Initiative, a political party in Portugal

Places

• İl, the term for 'province' in Turkey, see Provinces of Turkey
• Il, Iran, a village in Mazandaran Province, Iran
• Israel (ISO 3166-1 alpha-2 country code IL)
• Illinois (US postal abbreviation IL)
• Ilmenau, Thuringia, Germany (former vehicle plate code; newer plates use IK for Ilm-Kreis)

Science and technology

• Interlingua de Peano, a controlled language of Neo Latin used as an auxiliary language - not to be confused with Interlingua de IALA (IA), a constructed language

Biology, chemistry, and medicine

• Interleukin, a family of cytokines, in biochemistry
• Introgression line, in plant genetics
• Infralimbic prefrontal cortex nucleus
• Ionic liquid, in chemistry including pharmaceutics, and food science

Computing

• .il, the Internet Top Level Domain (TLD) code for Israel
• Internet Link protocol, developed originally as part of Plan 9 from Bell Labs
• Insert Line (ANSI), an ANSI X3.64 escape sequence
• Instruction list, an EC 61131-3 programming language
• Intermediate language, in computer science
  • Common Intermediate Language, the compiled form of .NET code
  • Common Language Infrastructure, originally named Microsoft Intermediate Language

Sports

• Injured list, a list of injured baseball players
• Interleague play in Major League Baseball

Other uses

• Il (Korean name), including a list of people with the name
• Il (Shugo Chara!), a character from the manga series Shugo Chara! by Peach-Pit
• International law
• IL (album), a 2016 album of French-Canadian pianist and composer Jean-Michel Blais
• Ugaritic spelling of the deity El
• Il, king of Umma, a Sumerian king, circa 2400 BCE
• IL, one way to write the Roman numeral for 49.
• IL, an abbreviation for the Israeli pound, the first currency of Israel
• Irish Language