Eua or EUA may refer to:

Places

  • ʻEua, Tonga
  • Eua (Cynuria), an ancient town of Cynuria, Greece
  • Eva, Arcadia, Greece
  • United States of America (French: '; Portuguese: '; Spanish: '; Tagalog: ')

Other uses

  • Emergency Use Authorization, a legal means for the U.S. Food and Drug Administration to approve new medical treatments during a declared emergency
  • EU Allowance, climate credits used in the European Union Emissions Trading Scheme
  • Eua (gastropod), a genus of snail
  • ʻEua Airport, in Tonga
  • Eua Sunthornsanan (1910–1981), Thai musician
  • European Unit of Account, a predecessor of the euro
  • European University Association
  • United Team of Germany which competed in the 1956, 1960, and 1964 Olympic Games