Cognomen Сенько (Senko 
, Сенько 
, Sen'Ko ) , worldwide, is a common surname. The surname Сенько is characteristic of Belarus, where it is quite a common surname, Ukraine, where it is quite a rare surname, and Albania. Measured by absolute frequency, it most frequently occurs in Eastern Europe, particularly Ukraine, Belarus, and Russia. Much less frequently, Сенько is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Senko | Slovakia, Poland, United States, Ethiopia, Japan |
| Сенько | Kazakhstan, Russia, Ukraine, Belarus |
| Sen'Ko | Belarus |
| сенько, павел кононович Russian explorer, KZ (b. 1916) |
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| сенько василий васильевич Soviet aviator, Twice Hero of the Soviet Union (1921-1984), UA (b. 1921) |
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| сенько іван михайлович UA (b. 1937) |
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| юрий алексеевич сенько chairman of the State Customs Committee of Belarus since 2015, BY (b. 1967) |
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| ганна мікалаеўна сенько BY (b. 1958) |
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| сенько, валерий александрович association football player, BY (b. 1998) |
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| кирилл сергеевич сенько Ukrainian association football player, UA |
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Ян, Илья, Инга, Инна, Иван, Егор, Рена, Феня, Чобо, Яків, Ілля, Іван, Інга, Інна, Ігор, Юлия, Юлія, Юрий, Юрій, Єгор, Фёдор, Макар, Олег, Мария, Ліда, Леся, Зоя, Лев, Ева, Яна, Єва, Макс, Майя, Алия, Алла, Анна, Адам, Глеб, Петр, Дар'Я, Дина, Діна, Нина, Ніна, Вера, Віта, Віра, Ліна, and Марта