5N, 5-N, or 5°N may refer to:
5N or 5°N, the 5th parallel north latitude 5N Plus Inc., Canadian metals manufacturer Saturn C-5N, a rocket Nigeria, aircraft registration code; ITU callsign prefix Aeroflot-Nord (IATA airline designator) NJ 5N, renamed New Jersey Route 53 F-5N, a model of Northrop F-5 MP-5N, a model of Heckler & Koch MP5 SSH 5N (WA) Washington State Route 161 F4U-5N, a model of Vought F4U Corsair F6F-5N, a model of Grumman F6F Hellcat AD-5N, a model of Douglas A-1 Skyraider 8A-5N, a model of Northrop A-17 M-5N, a model of Suunto protractor compass 5N, a model of HP LaserJet 5 HP 5N, ISO/IEC 8859-9 (Latin 5) character set on printers by Hewlett-Packard 5N, the production code for the 1980 Doctor Who serial The Leisure Hive
See also N5 (disambiguation)