Nux may refer to:
- Nux (newspaper), a student newspaper at the University of KwaZulu-Natal
- NUX Organization, a Japanese record label
- "Nux" (poem), a Latin poem spuriously attributed to Ovid
- Strychnos nux-vomica, a deciduous tree native to India and Southeast Asia
- One of the main characters in the movie Mad Max: Fury Road, a War Boy played by Nicholas Hoult.