CHK

CHK may refer to:

CHK (TV channel), a television channel in Southeast Asia
Chesapeake Energy, a major producer of natural gas
Civil Hospital Karachi, Pakistan
Chiswick railway station, England
Christian Historical Voters' League (Dutch: {{lang|nl|Christelijk Historische Kiezersbond}})
Chuukese language
.CHK, a filename extension used by the CHKDSK program
Checksum
Cheka (ЧК), Extraordinary Commission, Soviet secret police from 1917 till 1922