SL2

SL2 may refer to:

Art and entertainment

 * SL2 (musical group), British breakbeat hardcore group
 * Stuart Little 2, a 2022 film

Maths and science

 * Special linear Lie algebra $$\mathfrak{sl}_2$$
 * the mathematical structure SL2(F), a special linear group
 * SL2 RNA, a non-coding RNA involved in trans splicing in lower eukaryotes
 * Skylab 2 (SL-2), a NASA space mission

Technology and transport

 * Leicaflex SL2, a mechanical reflex camera
 * Canon EOS 200D, or Rebel SL2, a digital reflex camera
 * Schütte-Lanz SL2, an airship used in WWI
 * SL2, car in the Saturn S series
 * SL2 (MBTA bus), Boston bus line
 * Skylab 2 (SL-2), a NASA space mission
 * London Buses route SL2

Other uses

 * SL postcode area, the Slough postal region covering Farnham, Great Britain
 * Situational Leadership II, a leadership theory developed by Paul Hersey
 * Super League Greece 2 Greece's 2nd Division football championship