NUS or Nus may refer to:
- National University of Singapore
- Nus, Aosta Valley, Italy
- National Union of Students (Australia)
- National Union of Students (Canada) (disbanded)
- National Union of Students (United Kingdom)
- National Union of Seamen
- National University of Samoa
- Neglected and Underutilized Species, or Neglected and Underutilized Crops
- Norrland's University Hospital, Umeå, Sweden
- Norsup Airport (IATA airport code), on Malakula Island in Vanuatu
- NUS, the product code used by Nintendo for Nintendo 64 hardware and software, a reference to the platform's preliminary name of Nintendo Ultra 64
- Nus Ghani, British politician
- NUS High School of Math and Science
- Nu Skin Enterprises (ticker code)