LK or lk may refer to:
Businesses and organizations
edit- Air Luxor, IATA airline code
- Marking of Latin Kings (gang)
- Luckin Coffee, Chinese coffee house chain (former NASDAQ ticker lk)
Science and technology
edit- System LK, in mathematics, the classical sequent calculus
- LK (spacecraft), a Soviet lunar lander
Other uses
edit- LK (index mark code), county Limerick, Ireland, vehicle registration
- LK I, a German light tank prototype of the World War I
- LK II, a German light tank of World War I
- LK-700, a Soviet direct ascent lunar lander program proposed in 1964
- The LK, a Swedish indie band
- Sri Lanka (ISO 3166-1 alpha-2 country code LK)
- LK (Carolina Carol Bela), a drum and bass song by DJ Marky, XRS, and Stamina MC