AKN may refer to:
- Akn (Armenian: Ակն), a town in Central Anatolia or historical lesser Armenia founded by the Armenian Artsruni dynasty
- King Salmon Airport (AKN), IATA-Code des Flughafens in Bristol Bay Borough, Alaska, USA
- AKN Eisenbahn, a regional passenger and freight train operator in Hamburg and Schleswig-Holstein.
- AKN format (.akn), an international XML technical standard for representing executive, legislative and judiciary documents in a structured manner.