ELN

ELN may refer to:

Paramilitary

 * National Liberation Army (Colombia) (Spanish: Ejército de Liberación Nacional), involved in the continuing Colombian armed conflict
 * Ñancahuazú Guerrilla, a guerilla group active in the Cordillera Province, Bolivia from 1966 to 1967
 * National Liberation Army (Peru) (Spanish: Ejército de Liberación Nacional), a guerilla group active in 1965

Science

 * ELN (gene), coding for Elastin
 * Electronic lab notebook

Other uses

 * Bowers Airport, serving Ellensburg, Washington, United States
 * East Lothian, historic county in Scotland, Chapman code
 * Élan, an Irish pharmaceutical company
 * Equity-linked note, a financial instrument
 * European Leadership Network, a European think-tank
 * Emerging Leaders Network, a program of Toronto-based CivicAction