UAC
UAC is an abbreviation for:
- San Luis Río Colorado , IATA code for an airport in Mexico
- United Aircraft Corporation , Russian aviation group, see OAK (aviation group)
- United Africa Company , British shipping company
- Urban Area Code , a geographical coding for official statistics in Great Britain
- Unione Apostolatus Catholici , a spiritual community founded by Vincent Pallotti within the Roman Catholic Church, see Association of the Catholic Apostolate
- Universidade dos Açores , University of the Azores
- Upper Area Control Center , an air traffic control facility, see District Control Center
- User Account Control , the name of user account control in Microsoft Windows Vista, Windows 7, Windows 8, Windows 8.1 and Windows 10