Family name Гладун (Gladun 
, Гладун 
, Gladoun 
) , in the entire world, is quite a common cognomen. The cognomen Гладун is habitual in Eastern Europe, particularly Ukraine, where it is quite a common surname, Moldova, where it is quite a rare surname, and Belarus. In absolute terms, it is the most numerous in Eastern Europe, particularly Ukraine, Russia, and Belarus. Much less frequently, Гладун is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gladun | Russia, Egypt, Moldova, United States, Poland |
| Гладун | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Gladoun | Ukraine, United Kingdom, United States |
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гладун зіновій степанович UA (b. 1950) |
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| гладун, вадим иванович Soviet basketball player, UA (b. 1937) |
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| гладун, анатолий деомидович RU (b. 1935) |
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дарина гладун UA (b. 1993) |
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| гладун алла володимирівна UA (b. 1962) |
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| гладун богдан ігорович association football player, UA (b. 1999) |
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Ян, Віта, Віра, Зіна, Леся, Люба, Олег, Илья, Инна, Иван, Егор, Роза, Рима, Рита, Ріта, Яніс, Яків, Яким, Ілля, Іван, Інга, Інна, Влад, Вера, Ніна, Нина, Аня, Ник, Зоя, Оля, Яна, Єва, Майя, Марк, Маро, Міла, Ігор, Алла, Адам, Гала, Глеб, Гнат, Петр, Дана, Дар'Я, Дина, Діна, Неля, Анна, and Юлия