English abbreviations from nmyc to nnn
- NMYC(National Military Youth Corps)
- nn(Norwegian Nynorsk language (ISO 639-1 code))
- NN.(Nostris ("To Our" with a plural) or Numeri ("Numbers"))
- NNA(Kenitra Airport)
- NNADR(New Nonprofit Almanac and Desk Reference)
- NNAG(North Atlantic Treaty Organization (NATO) Naval Armaments Group)
- NNAWM(National Native American Wellbriety Month)
- NNB(Noon News Bulletin)
- NNC(Non- Normal Checklist)
- NND(No New Data)
- NNDSS(Nationally Notifiable Disease Surveillance System)
- NNE(North North-East)
- NNELL(National Network for Early Language Learning)
- NNF(New National Framework for teaching)
- NNFF(National NeuroFibromatosis Foundation)
- NNG(Nanning Wuxu International Airport)
- NNI(News Network International)
- NNJ(Nexus Network Journal)
- NNK(Naknek Airport (FAA: 5NK))
- NNL(Nondalton Airport (FAA: 5NN))
- NNM(Naryan-Mar Airport)
- NNMC(National Naval Medical Center)
- NNMCC(Northern New Mexico Community College)
- NNN(Near Northwest Neighborhood, Inc.)
