WK stands for Workstation (musical keyboards)
WK stands for Work
WK stands for Week
WK stands for Well Known
WK stands for Who Knows?
WK stands for Wiz Khalifa (rapper)
WK stands for White Knight
WK stands for Willis-Knighton (hospital)
WK stands for Wereld Kampioenschap (Dutch: World Cup)
WK stands for Weiß Kreuz (anime series)
WK stands for Wistar-Kyoto (rat breed)
WK stands for Andrew Wilkes-Krier (singer)
WK stands for West Karana (Everquest)
WK stands for Walter Kronkite
WK stands for Web Kall
WK stands for Winterization Kit
WK stands for Withdrawal Kanban
W-K stands for Woringer-Kolopp Disease
W-K stands for Wiener-Khinchine Relationship