Cognomen Гулько (Gulko 
, Гулько 
, Gul'Ko ) , all around the world, is quite a common last name. The last name Гулько is characteristic of Ukraine, where it is quite a rare surname, Belarus, and Latvia. Not in comparison with a country's population, it is the most numerous in Eastern Europe, particularly Ukraine, Russia, and Belarus. Much less frequently, Гулько is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gulko | Poland, United States, Israel, Latvia, Russia |
| Гулько | Ukraine, Kazakhstan, Belarus, Russia, Kyrgyzstan |
| Gul'Ko | Belarus |
| Goulko | Australia, Canada, Spain, United States, Belgium |
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гулько ярослав григорович UA (b. 1930) |
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| гулько, борис яковлевич UA (b. 1897) |
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| гулько, аким дмитриевич UA (b. 1904) |
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| гулько, михаил александрович Soviet singer, UA (b. 1931) |
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| іван сцяпанавіч гулько BY (b. 1924) |
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гулько вадим васильевич UA (b. 1986) |
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| гулько микола петрович UA (b. 1941) |
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| гулько василий сергеевич UA (b. 1959) |
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| гулько олег васильович Ukrainian military personnel, UA (b. 1972) |
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| гулько борис іванович UA (b. 1963) |
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| гулько олег олегович Ukrainian military personnel, UA |
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Ян, Віра, Леся, Ліна, Олег, Илья, Иван, Елла, Сава, Роза, Ріна, Фира, Яків, Яким, Целя, Элла, Ілля, Іван, Інга, Інна, Ігор, Юлия, Віта, Юлія, Віка, Вера, Зоя, Лев, Яна, Іза, Кадя, Майя, Марк, Муза, Міла, Алла, Анна, Афія, Петр, Дана, Дар'Я, Даша, Діна, Неля, Нина, Ніна, Ніла, Влад, and Юрий