LZK

LZK may refer to:

• LZK (Latvia) ({{langx|lv|Latvijas Ziņu kanāls|link=no}} or Latvian News Channel), a former TV channel in Latvia
• An alias for the MAP3K13 enzyme
• {{lang|pl|{{ill|Łódzkie Zakłady Kinotechniczne|pl|Prexer}}}} ({{lang|pl|ŁZK|italic=no}}), a former Polish manufacturer of film projectors
• The Doppler radar code of the National Weather Service North Little Rock, Arkansas