NUP

NUP is an abbreviation for:
 * National Umma Party Sudan. a political party in Sudan
 * National Union Party (disambiguation), a number political parties in various states
 * National Unity (Israel), a centre-right political alliance since 2022
 * National Unity Party (Philippines)
 * National Unity Platform, main opposition party in Uganda
 * Neapolis University, Pafos, a university in Cyprus
 * Necrotizing ulcerative periodontitis, a subclassification of Necrotizing periodontal diseases
 * New Union Party, a political party in the United States
 * New Unity Partnership, a trade union in the United States
 * Northwestern University Press
 * Nottingham University Press
 * Nuclear Pore
 * Número único previsional ('unique social security number'), the identification number for social security in El Salvador