What does KAK stand for?

Kajak Byggeriet Struer, Struer, Denmark - Manufacturer code for watercraft hull identification number (USCG)

Kakioka - Japan - Seismograph station code, US Geological Survey (SEIS)

Kayapa Kallahan - Language symbol (ETLW)

Key-Auto-Key - Computer science

Kungliga Automobil Klubben