Ain is a département of France.

Ain or AIN may also refer to:

Language

• Ain (letter) or , a letter in Semitic scripts such as Arabic and Hebrew

• Ainu language (ISO-639 alpha-3 code AIN)

Medical

• Anal intraepithelial neoplasia, a precursor to anal cancer

• Anterior interosseous nerve serving the forearm

• Acute interstitial nephritis, nephritis affecting the interstitium of the kidneys

People

• Ain (given name), a common Estonian masculine given name

• Ain (surname)

• Ain (mythology), an Irish mythological figure

Places

• Ain (Bible), a biblical city

• ‘Ain Dawwah, one of the springs of Wadi Bani Khalid, Oman

• Ain (river), a river in eastern France

• Al Ain, a city in the United Arab Emirates

• Ain, Iran, a village in Qazvin Province, Iran

• Aín, a town in eastern Spain

• Ain, Lucknow, a village in Uttar Pradesh, India

• El Ain (disambiguation), several places

Culture

• Ain (film), a Malayalam-language Indian film

• Autonomous Individuals Network, formerly known as Thee Temple ov Psychick Youth

Sports

• Al Ain Club, a football club in the United Arab Emirates

Individual Neutral Athletes, IOC country code AIN, after the French name

• Individual Neutral Athletes at the 2024 Summer Olympics

• Individual Neutral Athletes at the 2026 Winter Olympics

Business

• Albany International, an American industrial goods company whose stock trades under the AIN ticker symbol

• Advanced Intelligent Network in mobile telecoms

• Aviation International News, an aviation media

• American Independent Network, a TV network

• Aintree railway station, Liverpool, England (code: AIN)

• Advanced Intelligent Network (AIN) – Variant of Intelligent Network, telecommunications network architecture

Science

• Epsilon Tauri or Ain, an orange giant star

See also

• Ain Soph

• Ayn (disambiguation)

• Ayin (disambiguation)

• Al Ain (disambiguation)

• El Ain (disambiguation)