NUC
- NATO–Ukraine Council
- National Underclassmen Combine
- National Union Catalog
- National Union Committee
- National Universities Commission
- National University College
- Naval Auxiliary Landing Field San Clemente Island
- Naval Information Warfare Center Pacific
- Navy Unit Commendation
- Neutral unit of construction
- Next Unit of Computing
- North University of China
- Not Upwardly Compatible
- Nuc
- Nuke (disambiguation)
- Nukini language
- Tomáš Nuc
- University of Newcastle (Australia)