LK

LK is a code for:

*Sri Lanka
*.lk, the Internet country code top-level domain (ccTLD) for Sri Lanka.
*The IATA code for Air Luxor airline

LK may also refer to:

* low kick
* Lech Kaczyński - President of Poland since 2005
* The Latin Kings - An urban street gang.
* A particular Sequent calculus
* Lanky Kong, a Donkey Kong first seen in Donkey Kong Country