UK Views 18 meanings found UK most often stands for the United Kingdom, yet it also appears as an abbreviation for Union Carbide, Ukrainian language or nationality, a medical shorthand for unknown, and the University of Karlsruhe. Medical Unknown Miscellaneous United Kueers Upper Krust United Kingdomland The Underworld Kingdom United Kingdom (Great Britain) International Birlesik Krallik, Ingiltere (United Kingdom) Academic & Science University Karlsruhe University of Kent Universiteit van Kaapstad University of Karachi Regional United Kingdom Ukrainian Internet Undercover Killers Sites in the United Kingdom U Know Business Union Carbide Corporation (delisted) United Kollectives