N class or Class N may refer to:
N-class destroyer, a class of British Royal Navy ships NBR N class, a class of steam locomotives used by the North British Railway NZR N class, a class of steam locomotives used by the New Zealand Railways Department and the Wellington and Manawatu Railway SECR N class, a type of steam locomotive designed in 1914 for use on the South Eastern and Chatham Railway (SECR) South Australian Railways N class, a class of steam locomotives V/Line N class, a class of diesel locomotives built in Somerton, Victoria Victorian Railways N class, a class of steam locomotives WAGR N class, a class of Australian steam locomotives Westrail N class, a class of Australian diesel locomotives United States N-class submarine, a class of US Navy submarines N-class blimp, a class of US Navy blimps N-class ferry, a class of Canadian ferries N-class Melbourne tram N-class Sydney tram
See also N (disambiguation)