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 (N42), a minelayer of the Lithuanian Navy
- Tien Shan Astronomical Observatory, in Kazakhstan
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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