| 311. | KHUBLAR | From Persian khub "nice", "beautiful" and Turkish lar plurality suffix. It is forgotten now only the surname Khublaryan is met. |
| 312. | KHUDAVERDI | From Persian khuda "god" and Turkish verdi "gave" i.e. "God-given". The corresponding surname is Khudaverdyan. |
| 313. | KHURSHUD | From Persian khuršid "sun". The corresponding surname is Khurshudyan. |
| 314. | KIM | From Russian name Kim which is an abbreviation of the Communist International of Youth. The diminutive form is Kimik. |
| 315. | KIPRIANOS | From Greek name Kuprianos which means "Cyprus inhabitant". We also meet the form Kprianos. |
| 316. | KIRAKOS | From Greek kuriakos "state". The short forms are Kakos, Kikos. The corresponding surnames are Kirakosyan, Kakosyan. |
| 317. | KNYAZ | From Russian knyaz "prince". It is a rare name now. The corresponding surname is Knyazyan. |
| 318. | KODZIK | From Armenian kodzik "connecting with each other", "joiner", "glue". It is out of use now. |
| 319. | KOMITAS | From Greek name "having long hair". In old days it mainly was the name of clergymen. This name became popular in honor of Armenian great composer-musician Komitas. |
| 320. | KORYUN | From Armenian word koryun "baby lion". It is still in use. |
