Ath is a city in Belgium.

The acronym or initials ATH may also refer to:

• Athens International Airport, Greece, IATA code

• Atherstone railway station, UK, National Rail code

• Anti-tank helicopter, type of military helicopter

• Around the Horn, an ESPN Television Show

• Absolute threshold of hearing

• ATH (interbank network), Puerto Rico and the Caribbean

• A Toda Hora, a Colombian interbank network

• The Hayes command set for modems "hang up" command

• University of Bielsko-Biała (Polish: or "ATH" in its logo and web site)

• Athabaskan languages (ISO 639-2 and ISO 639-5 codes)

• The abbreviation for the Athletics baseball team, formerly known as the Oakland Athletics (OAK)

• IOC sport code for athletics at the Summer Olympics

See also

• Anth (disambiguation)