N class or Class N may refer to: N-class destroyer, a class of British Royal Navy ships 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) V/Line N class, a class of diesel locomotives built in Somerton, Victoria Westrail N class, a class of Australian diesel locomotives Sydney N-Class Tram, a type of streetcar 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 Victorian Railways N class steam locomotive See also N (disambiguation)