DLI

DLI may refer to:


 * Daily light integral, the number of photons received in an area
 * Defense Language Institute of the US DoD
 * Delhi Junction railway station (station code DLI)
 * Durham Light Infantry, UK
 * Donor lymphocyte infusion, immunotherapy
 * Delay line interferometer
 * Digital Library of India
 * Department of Land Information, Western Australia
 * Data Language Interface (DL/I) to IBM's IMS databases
 * 551 in Roman numerals
 * Lien Khuong Airport IATA code
 * Dysfunctional Lens Index a measure for cataract diagnosis