Echelon

Echelon may refer to:
* Echelon form, in mathematics, a kind of matrix
* Echelon formation, a formation in migratory bird flight, aerial combat, tank warfare, naval warfare and medieval warfare
* ECHELON is an intelligence gathering network rumoured to be run by an international alliance of signals intelligence organisations known as UKUSA
** Echelon IV, in the video game Deus Ex is replaced by Daedalus, a fictional computer surveillance system
* Echelon (warez), a game console warez organization
* Echelon (flight simulator), a flight simulator series developed by MADIA
* Echelon (video game), a 1988 video game which could employ acoustic steering commands
* Echelon (card game), a card game by Echelon Games
* Echelon (geology), in geology, a set of short linear features that overlap or are staggered in a line that runs obliquely to the strike of the individual features
* Echelon (band)
* Echelon (Thirty Seconds to Mars) is the street team of the band 30 Seconds to Mars
* Echelon Corporation, a US Corporation, self identified as a pioneer in control networks, creators of the LonWorks distributed control platform
* Echelon Cycle Works, a company that builds custom steel road, track, and cyclocross bicycle frames [1]
* Riding in an echelon, a road bicycle racing technique to make maximum use of another rider's slipstream in a crosswind