UCN

UCN may stand for: National Civic Union (Bolivia), a political party Ultracold neutrons Genes in the human urocortin family UCN (gene) UCN2 UCN3 UCN, the IATA Airport Code for Buchanan Airport Ultimate Custom Night, the seventh game in the ''Five Nights at Freddy's'' game series Universal character name, a feature of C99 (and later versions).

==Education== Central University of Nicaragua, a private and nonprofit university, Nicaragua Universidad Católica del Norte, a university in Antofagasta, Chile University College of the North, a university college in Manitoba, Canada University College of Northern Denmark, a university in Denmark