9K may refer to:

  • 9000 (number), the natural number following 8999 and preceding 9001
  • Gnome-Rhône 9K, a 9-cylinder 550 hp (405 kW) air-cooled radial engine
  • Cape Air IATA airline designator
  • Kuwait aircraft registration code
  • Kampfgeschwader 51, from its historic Geschwaderkennung code with the Luftwaffe in World War II
  • NY 9K, see New York State Route 9N
  • Soyuz 9K, see Soyuz-B
  • Yak 9K, see Yakovlev Yak-9
  • 9K, a model of SNECMA Atar
  • Typ 9K, a model of SEAT Inca
  • GCR Class 9K, a class of British 4-4-2T steam locomotive

See also

  • 9000 (disambiguation)
  • K9 (disambiguation)
  • K (disambiguation)