| Kaukasus | Caucasus Caucasus Mountains |
| kaukasoid | Caucasoid |
| Kaufhaus | department store |
| Kaukasier | Caucasian |
| Kaunas | Kaunas |
| kaukasisch | Caucasian |
| Kasus | case occurrence incident |
| Sarkasmus | sarcasm |
| kafkaesk | kafkaesque |
| Baumkauz | western barn owl |
| Kaumagen | gizzard |
| Kausalismus | causalism |
| Kausch | cringle |
| Nordkaukasus | North Caucasus |
| Ankauf | purchase |
| Kausativ | causative |
| Kautabak | chewing tobacco |
| Krakau | Cracow Kraków Krakow |
| Labskaus | scouse |
| kaudal | caudal |