3N or 3-N may refer to:
3rd parallel north latitude Air Urga's IATA code F6F-3N, a model of Grumman F6F Hellcat F7F-3N, a model of Grumman F7F Tigercat P-3N, a model of Lockheed P-3 Orion 8A-3N, a model if Northrop A-17 Routine 3N Incidents, see Incident (Scientology)
Film No Nut November, a 2008 South African film
See also N3 (disambiguation)