Last name Дячук (Дячук 
, Diachuk 
, Dyachuk 
) , all around the world, is a common cognomen. The cognomen Дячук is characteristic of Eastern Europe, particularly Ukraine, where it is quite a common surname, Belarus, where it is quite a rare surname, and Russia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Дячук | Kazakhstan, Ukraine, Belarus, Russia |
| Diachuk | Russia, United States, Argentina, Canada, Ukraine |
| Dyachuk | Russia, Italy, United States, Canada, Ukraine |
| Djachuk | Ukraine |
|
дячук уляна UA (b. 1932) |
|
| василь дячук chess composer, UA (b. 1972) |
|
|
| дячук сергій петрович Ukrainian association football player, UA (b. 1989) |
|
|
| дячук, назар UA (b. 1991) |
|
Ян, Ніла, Вера, Віта, Віра, Лада, Лена, Леся, Ліна, Ліля, Ліда, Ліза, Люба, Люся, Женя, Жорж, Олег, Инна, Иван, Елія, Ерік, Сава, Ніна, Нона, Нина, Неля, Ала, Ада, Зоя, Лев, Яна, Юля, Юра, Єва, Кіра, Макс, Саша, Майя, Міша, Алла, Алік, Анна, Адам, Паша, Петр, Дана, Дар'Я, Діна, Марк, and Туся