N42

N42 may refer to:


 * BMW N42, an automobile engine
 * HMS Pandora (N42), a submarine of the Royal Navy
 * Kunda language, a Bantu language of Zimbabwe
 * Limilngan language, an extinct Aboriginal Australian language
 * LITHUANIAN SHIP Jotvingis, a minelayer of the Lithuanian Navy
 * Tien Shan Astronomical Observatory, in Kazakhstan