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Family name Kiryakov (Киряков , Кирьяков , Kiryakov ) , worldwide, is quite a common surname. The cognomen Kiryakov is characteristic of Eastern Europe, particularly Bulgaria, where it is quite a common surname, Moldova, where it is quite a rare surname, and Russia.
Mr, Ilian, Yavor, Yurii, Martin, Monica, Mihail, Sergey, Stefan, Stoyan, Alexey, Andrey, Atanas, Kirill, Kiyano, Krasen, Daniel, Dmitry, Georgi, Leonid, Nikola, Hristo, Vasil, Lyubo, Georg, Danil, Petr, Roko, Dimo, Egor, Ilya, Ivan, Oleg, Yani, Manol, Maxim, Vaklin, Serge, Artem, Boris, Kamen, Kiril, Pavel, Peter, Petar, Penyo, Rosen, Roman, Anton, and Iliyan