ACN
ACN is a three-letter acronym that may refer to:
- Accenture (NYSE: ACN)
- Achnasheen railway station (National Rail code: ACN), a United Kingdom railway station
- Acrylonitrile
- Acetonitrile
- ACN Inc., a multi-level marketing company selling telecommunications services
- Agencia Carabobeña de Noticias, a news agency based in Valencia, Venezuela
- Aid to the Church in Need, an international Catholic charity based in Königstein im Taunus, Germany
- Aircraft Classification Number, an ICAO standard number indicating the pavement load imposed by an aircraft
- Anglican Communion Network, a missionary organisation based in Pittsburgh, USA
- Ante Christum Natum, the Latin equivalent of B.C., seldom used in English
- Architecture for Control Networks, a network protocol for theatrical control
- Australian Company Number, a number issued by the Australian Securities and Investments Commission to registered companies
- American Collectibles Network, former name of the American television network now known as Jewelry Television
- Acn, abbreviation for the orchid genus Acineta
- Africa Cup of Nations, biannual cup of nations organized by the CAF.
- Action Congress of Nigeria, a political party of Nigeria
- Application Context Name (Used in Network/Communication protocols. As per ETSI standards)