Same as Italian Caciocavallo.
Kaiser-käse
Germany
This was an imperial cheese in the days of the kaisers and is still made under that once awesome name. Now it's just a jolly old mellow, yellow container of tang.
Kajmar, or Serbian Butter
Serbia and Turkey
Cream cheese, soft and bland when young but ages to a tang between that of any goat's-milker and Roquefort.
Kamembert
Yugoslavia
Imitation Camembert.
Karaghi La-La
Turkey
Nutty and tangy.