NEG or neg is an abbreviation that may refer to: the IATA code for Negril Aerodrome in Jamaica. Net energy gain. Non-evaporable getter, in vacuum technology. Negative (disambiguation) Negging, the giving of a backhanded compliment. NEG Micon, now part of Vestas. Nippon Electric Glass, a Japanese manufacturer. National Energy Guarantee, Australia. Neg Dupree, of Neg's Urban Sports https://en.wikipedia.org/wiki/NEG