HKA

HKA may refer to:
 * HKA test, of molecular evolution
 * Blytheville Municipal Airport, in Arkansas, US
 * Henryka Beyer (1782–1855), German painter
 * Hong Kong Academy
 * Hong Kong Attitude, an esports organization
 * Hong Kong Airlines, founded 2006
 * Hong Kong Airways, active 1947–1959
 * Kahe language
 * Superior Aviation, an American airline