Family name Осадчук (Осадчук 
, Osadchuk 
) , throughout the world, is a common cognomen. The family name Осадчук is habitual in Eastern Europe, particularly Ukraine, where it is quite a common surname, Russia, where it is quite a rare surname, and Belarus. In absolute terms, it is commonest in Ukraine, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
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| Осадчук | Ukraine, Kazakhstan, Belarus, Russia, Azerbaijan |
| Osadchuk | Ukraine, Canada, Albania, Russia, United States |
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осадчук володимир степанович UA (b. 1938) |
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осадчук мария лукинична UA (b. 1939) |
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осадчук, александр кузьмич politician, UA (b. 1961) |
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андрей петрович осадчук UA (b. 1971) |
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| осадчук віктор олександрович Soviet association football manager, UA (b. 1934) |
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| петро ількович осадчук politician (1937-2014), UA (b. 1937) |
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| осадчук василь антонович UA (b. 1940) |
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| осадчук станіслав васильович Ukrainian military personnel, UA (b. 1965) |
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| осадчук, сергей иванович Russian footballer, RU (b. 1982) |
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| богдан осадчук Ukrainian actor, UA |
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Ян, Ніна, Ніла, Вера, Віка, Віта, Віра, Зося, Лада, Леся, Нина, Ліна, Ліда, Люба, Люда, Люся, Ляля, Женя, Олег, Илья, Инна, Ліла, Неля, Діна, Дима, Аля, Аза, Зоя, Лев, Оля, Она, Яна, Юля, Єва, Коля, Макс, Майя, Марк, Міла, Алла, Анна, Айша, Петр, Пётр, Дана, Дар'Я, Иван, and Егор