'''IL2''' or '''IL-2''' may refer to:

* Ilyushin Il-2 ''Shturmovik'', a World War II era Soviet ground attack aircraft; * ''IL-2 Sturmovik'' (series), a series of games named after the ''Ilyushin Il-2'' aircraft: :* ''IL-2 Sturmovik'' (video game), a 2001 video game, the first in the series; :* ''IL-2 Sturmovik: Forgotten Battles'', a 2003 sequel to the ''IL-2 Sturmovik'' video game; :* ''IL-2 Sturmovik: 1946'', the 2006 final compilation of all precedent ''IL-2 Sturmovik'' video game add-ons; :* ''IL-2 Sturmovik: Birds of Prey'', a 2009 sequel to the ''IL-2 Sturmovik'' video game, mainly destined to video game consoles; :* ''IL-2 Sturmovik: Cliffs of Dover'', a 2011 sequel to the original ''IL-2 Sturmovik'' video game, using a new game engine and thus the second generation of video games in the ''IL-2 Sturmovik'' series; :* ''IL-2 Sturmovik: Great Battles'', a 2013 sequel to the original ''IL-2 Sturmovik'' video game, the third generation in the ''IL-2 Sturmovik'' series, again, because of using a different game engine. * Interleukin 2, a cytokine glycoprotein that stimulates the growth of T cell lymphocytes and provides other biochemical signaling to the immune system; :* IL-2 receptor, a protein that binds and responds to interleukin 2; * Illinois's 2nd congressional district; * Illinois Route 2, a north–south state road in northern Illinois; * I-League 2nd Division, the second-highest division overall in the Indian system of football leagues.

{{Letter-Number Combination Disambiguation}}