N11 or N-11 may refer to:

Roads N11 (South Africa) N11 highway, Philippines N11 motorway (Netherlands) N11 road (Ghana) N11 road (Ireland) Nebraska Highway 11, United States Route nationale 11, France

Other uses N11 (emission nebula) , a submarine of the Royal Navy Intel i860 XP, a microprocessor Interstitial nephritis LNER Class N11, a class of British steam locomotives London Buses route N11 N11 code, special telephone numbers in the North American Numbering Plan Next eleven, a group of emerging economies proposed by Goldman Sachs Nieuport 11, a French World War I fighter Nissan Pulsar (N11), a Japanese car Nitrogen-11, an isotope of nitrogen North Springs station, a MARTA station in Sandy Springs, Georgia N11, a postcode district in the N postcode area of North London