UCS may refer to:
Educational institutions University College School, a British independent school situated in Hampstead, north west London University Campus Suffolk, former name of a university based in Ipswich, Suffolk, United Kingdom University of Caxias do Sul, a university in Brazil
Technology Cisco Unified Computing System, a computing server product line Uniform Communication Standard, an electronic commerce standard Uniform-cost search, an algorithm used to search a weighted graph Univention Corporate Server, an operating and management system for IT infrastructure Universal Character Set, a standard for character encoding Universal Character Set feature for impact printers Universal Charging Solution, a proposed standard for cell phone chargers Uniform color space, a type of mathematical color model
Other Civic Solidarity Union, a political party in Bolivia Undercover Slut, a French-American musical group Uniform Color Scales, a color space developed by the Optical Society of America Union of Concerned Scientists, a nonprofit advocacy organisation United Cigar Stores, an American tobacconist chain of the early 20th century United Communication Service, the largest cable operator in Bangladesh Universal City Studios, an American film studio, and a subsidiary of Comcast and NBCUniversal Upper Clyde Shipbuilders, a now defunct amalgamation of shipbuilders of the River Clyde, Glasgow, Scotland Judiciary of New York or Unified Court System, of the State of New York Ultimate Collectors Series, a section of the Lego Star Wars range