N12 may refer to:

Roads N12 (South Africa) N12 road (Ghana) N12 road (Ireland) Nebraska Highway 12, United States Route nationale 12, France

Other uses N12 (Art Group), China , a submarine of the Royal Navy N12, the website for Hevrat HaHadashot (the News division for the Israeli Channel 12) Interstitial nephritis Lakewood Airport, New Jersey, United States LNER Class N12, a class of British steam locomotives Nissan Pulsar (N12), a Japanese car Nitrogen-12, an isotope of nitrogen Nylon 12, a polymer N12, a postcode district in the N postcode area, North London, England

See also 12N (disambiguation)