• Ab urbe condita
  Ab urbe condita
  Ab urbe condita is Latin for "from the founding of the City ", traditionally set in 753 BC. AUC is a year-numbering system used by some ancient Roman historians to identify particular Roman years...
  
  , Latin for "from the founding of the city" (of Rome), used for calculation of dates. (Also as Anno Urbis Conditae, "in the year from the founding of the city".)
• African Union Commission
• The technique of analytical ultracentrifugation, combining sedimentation equilibrium and sedimentation velocity experiments
• The IATA code for the Santiago Pérez Quiroz Airport in Arauca, Colombia
• Area under the curve, in mathematics, including:
  • Area under the curve (pharmacokinetics), regarding plasma drug concentration-time curves
  • receiver operating characteristic
    Receiver operating characteristic
    In signal detection theory, a receiver operating characteristic , or simply ROC curve, is a graphical plot of the sensitivity, or true positive rate, vs. false positive rate , for a binary classifier system as its discrimination threshold is varied...
    
    
• Authentication Center in a GSM mobile phone network
• United Self-Defense Forces of Colombia
  United Self-Defense Forces of Colombia
  The United Self-Defense Forces of Colombia was created as an umbrella organization of regional far-right...
  
   (in Spanish: Autodefensas Unidas de Colombia), the main paramilitary group in Colombia

Colleges and universities

• Aalborg University, formerly called Aalborg Universitetscenter, used AUC as the official abbreviation
• Agder University College
  Agder University College
  University of Agder is a public university located in both Kristiansand and Grimstad, Norway. The institution was established as a University college in 1994 with the merger of six colleges and was granted its current status as a University in 2007, but its academic activity dates as far back as...
  
   in Kristiansand, Norway
• Algoma University College
• Ambrose University College
  Ambrose University College
  Ambrose University College is a private Christian liberal arts college located in Calgary, Alberta.-History:Ambrose University College is the product of similar educational journeys begun in the first half of the twentieth century....
  
  , a liberal arts college in Calgary, Alberta
• Amsterdam University College
  Amsterdam University College
  Amsterdam University College was established in 2009 as a joint excellence initiative of the VU University and University of Amsterdam. AUC’s motto is Excellence and Diversity in a Global City. The college offers a three-year English taught Bachelor honours programme in the liberal arts and...
  
  , a liberal arts and sciences college in Amsterdam, Netherlands
• American University in Cairo
  American University in Cairo
  The American University in Cairo is an independent, non-profit, apolitical, secular institution of higher learning located in Cairo, Egypt...
  
  , a private university in Cairo, Egypt
• American University of the Caribbean
  American University of the Caribbean
  The American University of the Caribbean School of Medicine is an international, for-profit, U.S. curriculum-based medical school with a main basic science campus in Sint Maarten, and is based in Coral Gables, Florida...
  
   a medical school in Sint Maarten
• Apple University Consortium
  Apple University Consortium
  The Apple University Consortium is a partnership between Apple Australia and a number of Australian universities. Every two years it holds the AUC Academic & Developers Conference in an Australian city...
  
   in Australia
• Atlanta University Center
  Atlanta University Center
  The Atlanta University Center Consortium is the largest contiguous consortium of African Americans in higher education in the United States. The center consists of four historically black colleges and universities in southwest Atlanta, Georgia...
  
  , the group of HBCUs in Atlanta, Georgia
• Atlantic Union College
  Atlantic Union College
  Atlantic Union College was a Seventh-day Adventist college in South Lancaster, Massachusetts. Its final year operating as an independent institution was the 2010-2011 school year following loss of accreditation from the New England Association of Schools and Colleges...
  
  , a liberal arts college in South Lancaster, Massachusetts

Religious

• Australian Union Conference of Seventh-day Adventists
  Australian Union Conference of Seventh-day Adventists
  The Seventh-day Adventist Church in Australia is formally organised as the Australian Union Conference of Seventh-day Adventists , a subentity of the South Pacific Division of Seventh-day Adventists. As of 31 December 2008, church membership stands at 54,173...
  
  
• American Unitarian Conference
  American Unitarian Conference
  The American Unitarian Conference was founded in 2000 by several Unitarian Universalists who felt that the Unitarian Universalist Association had become too theologically liberal and too political. They decided their mission was to promote "classical" Unitarianism, which they argued as being...
  
  was founded in 2000 by several Unitarian Universalists who felt that the Unitarian Universalist Association had become too liberal, both theologically and politically