ELT may refer to: Education English language teaching Expanded learning time, an American education strategy Kolb's experiential learning theory Mathematics and science Ending lamination theorem Extremely large telescope, a type of telescope Extremely Large Telescope, an astronomical observatory under construction in Chile Effective lifetime temperature, used in rehydroxylation dating Medicine Endovenous laser treatment Euglobulin lysis time Excimer laser trabeculostomy Music Every Little Thing (band), a Japanese J-Pop band "ELT", a song by the band Wilco from their 1999 album Summerteeth Technology Emergency locator transmitter Extract, load, transform, a data processing concept End-of-life tyre Transport East London Transit, a British public transport system El Tor Airport, in Egypt Elizabethtown station, Pennsylvania Other uses Electrical lighting technician, a stage-lighting technician Electronic lien and title Elt Drenth (1949–1998), Dutch swimmer Evolutionary leadership theory Executive Leadership Team