5N

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