Surname Дедечек (Дедечек 
, Dědeček 
) , globally, is a rare cognomen. The cognomen Дедечек is characteristic of Eastern Europe, particularly Czechia, where it is quite a rare surname, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Дедечек | Ukraine |
| Dědeček | Czechia |