Ayn

Ayn may refer to:


 * Ayin or ʿayn, a letter in many Semitic scripts
 * Ayn, Savoie, a commune of the Savoie département of France
 * Ghayn (Cyrillic) (Ғ,ғ), a letter used in the Bashkir, Kazakh, and Tajik alphabets
 * Ayn Rand, Russian-born American novelist and philosopher
 * Anyang Airport, China, IATA code AYN
 * San'ani Arabic (ISO 639-3 ), an Arabic dialect spoken in Yemen
 * Al Ain, a city in the Emirate of Abu Dhabi in the United Arab Emirates
 * Cayn, or Ayn, a disputed region of Somaliland