ZK may refer to:
ZK is an open-source Ajax Web application framework, written in Java, that enables creation of graphical user interfaces for Web applications with little required programming knowledge.
The ZK-383 is a submachine gun developed by the Koucký brothers, who worked at the pre-war Československá zbrojovka, akc.spol.
Zinc finger protein with KRAB and SCAN domains 1 is a protein that in humans is encoded by the ZKSCAN1 gene.
Zinc finger protein with KRAB and SCAN domains 5 is a protein that in humans is encoded by the ZKSCAN5 gene.
Založba kaset in plošč RTV Ljubljana or Založba kaset in plošč Radiotelevizije Ljubljana (acronym ZKP RTLJ, meaning Publishing and Record Label RTV Ljubljana in Slovene), was a major record label in the former SFR Yugoslavia, based Ljubljana, Socialist Republic of Slovenia.
Založba kaset in plošč RTV Slovenija or Založba kaset in plošč Radiotelevizije Slovenija (acronym ZKP RTVS, meaning "Publishing and Record Label RTV Slovenia" in Slovene) is a major Slovenian record label, based in Ljubljana.
ZKTeco is an international multinational bio-security company headquartered in Shenzhen, China, that develops, manufactures, supports and sells biosecurity devices and software.