6N

6N or 6-N may refer to:


 * 6N or 6°N, the 6th parallel north latitude
 * Nordic Airways, IATA airline designator
 * List of highways numbered 6N
 * U.S. Route 6N
 * U.S. Route 6 in New York
 * US 6N (NY), see U.S. Route 209 in New York
 * Six Nations Championship, the annual northern hemisphere rugby union competition sometimes abbreviated as 6N
 * ER-6n, a model of Kawasaki Ninja 650R
 * Extrom 6N, see Caprolactam
 * Typ 6N, internal corporate name for Volkswagen Polo Mk3
 * 6N caves, see List of caves in Western Australia
 * 6N, the production code for the 1984 Doctor Who serial Frontios