| 291. | KARAPET | From Armenian word karapet "leader", "prophet". It is an old name, the short forms of which are Karo, Krpo, Karik. From all of them we can form surnames. |
| 292. | KAREN | From Persian name Karen. The surname Karinyan is formed from the name of the city Karin and has no connection with this name. |
| 293. | KARIM(Kyarim) | Frim Arabian name Karim which means "honest", "generous", "kind". It was used in XI-XVc. Now it is forgotten, only the surname Karimyan is often used. |
| 294. | KARLEN | Is an abbreviation of the names Karl Marx and Lenin. It is in use now. |
| 295. | KARLOS | From German name Karlos which came by means of literature. |
| 296. | KARPIS | From Greek karpos "fruit". |
| 297. | KAYDZAK | From Armenian kaydzak "lightning". We also have the surname Kaydzakyan. |
| 298. | KAZBEK | Is the name of one of the Caucasian Chain peaks, consisting of Turkish kazi "judge" and bek "prince". |
| 299. | KEROVBEH(Kerob) | From Armenian kerovbeh "angel" which is also used as a name. In XIX c. the form Kerovb was also met. Now we have the form Kerob and the surname Kerobyan. |
| 300. | KHACHATUR | From Armenian khach "cross" and tur "give" i.e. "given by cross". It is very common now as well as the surname Khachaturyan. |