UOA or UoA may refer to:
National and Kapodistrian University of Athens, Greece Unit of Application, a geographic area for Medical Training Application Service University of Aberdeen, Scotland University of Abertay, Scotland University of Adelaide, Australia University of Alberta, Canada University of Asmara, Eritrea University of Auckland, New Zealand UOA Group, a company in Malaysia Used Oil analysis, a laboratory analysis of a lubricant's properties, suspended contaminants, and wear debris, performed during routine predictive maintenance to provide meaningful and accurate information on lubricant and machine condition.