Cognomen Колчин (Колчин 
, Kolchin 
, Koltchine 
) , in the entire world, is quite a common last name. The cognomen Колчин is habitual in Russia, where it is quite a rare surname, Kazakhstan, and Belarus. In absolute terms, this name is the most popular in Russia, Kazakhstan, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Колчин | Ukraine, Kazakhstan, Belarus, Russia, Kyrgyzstan |
| Kolchin | Spain, Lithuania, Bulgaria, Russia, United States |
| Koltchine | United States, France, Canada |
| Kolchyn | Ukraine |
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колчин, павел константинович Soviet cross-country skier, RU (b. 1930) |
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колчин виктор александрович RU (b. 1921) |
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| борис александрович колчин Soviet historian and archaeologist (1914-1984), RU (b. 1914) |
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колчин, денис борисович Ukrainian association football player, UA (b. 1977) |
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| колчин, василий артёмович RU (b. 1918) |
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| колчин, александр александрович RU (b. 1922) |
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| валентин федорович колчин mathematician who specialised in areas of discrete mathematics such as probability, graph theory and combinatorics, RU (b. 1934) |
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дмитрий юрьевич колчин RU (b. 1982) |
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| фёдор павлович колчин Estonian nordic combined skier, EE (b. 1957) |
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| колчин, сергей валентинович RU (b. 1959) |
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| юрий евгеньевич колчин Russian association football player, RU (b. 1976) |
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| колчин, антон андреевич Russian association football player, RU (b. 1985) |
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| колчин, евгений алексеевич RU |
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Лев, Марія, Антон, Артем, Артур, Артём, Борис, Павло, Павел, Петро, Данил, Давид, Денис, Динис, Ванек, Вадим, Захар, Игорь, Семен, Слава, Тимур, Раиль, Марат, Кирил, Костя, Юрій, Юра, Клим, Макс, Миша, Глеб, Паха, Паша, Петр, Дима, Ваня, Роман, Вова, Женя, Олег, Илья, Иван, Егор, Саша, Стас, Іван, Ігор, Юрий, Влад, and Ринат