KhokhlenkovmRussian From the term хохол (khokhol), a type of traditional Ukrainian cossack hairstyle or can be used as derogatory for Ukrainian person.
KhrystosenkoUkrainian From Ukrainian Христос (Khrystos), meaning "Christ". Likely denoted to very religious person.
KhrzhanovskiyRussian, Jewish Russian form of Chrzanowski. Khrzhanovskiy was the last name of Andrey and Ilya Khrzhanovskiy, both Soviet film directors. Ilya has made most of his career in the Russian Federation.
KolyadaRussian, Ukrainian From Коляда (Kolyada), a name for Slavic Christmas celebrations (or formerly, Slavic pagan traditional winter solstice celebrations).
KolykhayevmRussian From Russian колыхание (kolykhaniye), meaning "swaying, swinging, fluctuating".