JWK may refer to:

• JW Komandosów, a special forces unit of Poland
• Joanne Whalley (born 1964), English actress sometimes credited as Joanne Whalley-Kilmer
• JSON Web Key in JSON Web Signature
• Warwick railway station, Perth, in Western Australia

• Cold Chisel
• Cold Comfort Farm
• Cold cracking
• Cold cream
• Cold Creek Manor
• Cold Crush Brothers
• Coldcut
• Cold cuts
• Cold Cuts (Show of Hands album)
• Cold dark matter
• Cold day in hell
• Cold day in Hell
• Cold (disambiguation)
• Cold drawing
• Cold Duck
• Cold-Eeze
• Col de Flüela
• Col. DeKlerk
• Col de la Bernina
• Col Delacroix
• Col de la Croix
• Col de la Croix de Fer
• Col de la Croix-de-Fer
• Col de la Croix (Jura)
• Col de la Croix (Vaud)