AKN may refer to:
- Akn (Armenian: Ակն), a town in Eastern Anatolia, Turkey
- King Salmon Airport, Bristol Bay Borough, Alaska, US, IATA code
- AKN Eisenbahn, rail operator in Hamburg and Schleswig-Holstein
- AKN format (
.akn
), an XML format for government documents - Acne keloidalis nuchae, a skin condition
- A US Navy hull classification symbol: Net cargo ship (AKN)