- a television and radio network.
- atomic, biological, and chemical: ABC warfare.
- Advance Booking Charter.
- Alcoholic Beverage Control.
- the rudiments of a subject
- an alphabetical guide to a subject
- the alphabet
- (formerly, of weapons or warfare) atomic, biological, and chemical
- Australian Broadcasting Corporation
- American Broadcasting Company
- Audit Bureau of Circulation
- Australian-born Chinese: a person with Chinese parents, born and raised in Australia
- American-born Chinese: a person with Chinese parents, born and raised in the US
- acceptable behaviour contract: a voluntary written agreement between someone who has been involved in anti-social behaviour and a local agency such as a housing association, council, or police
