EUA

Eua or EUA may refer to:

• Eua, a snail genus
• ʻEua, an island of Tonga
  • 'Eua Airport
• Eua, Argolis
• ‘Eua rail (Gallirallus vekamatolu), an extinct species of bird
• Eua Sunthornsanan (1910–1981), Thai composer
• Eid ul-Adha
• Emergency Use Authorization, in the United States
• End-user license agreement, or end license agreement
• European Unit of Account
• European University Association
• United States of America, EUA in French (États-Unis d'Amérique), Spanish (Estados Unidos de América) and Portuguese (Estados Unidos da América)
• United Team of Germany of 1956–1964 (IOC code: EUA)
• EU emission allowance, see European Union Emission Trading Scheme