Last name Блага (Blaga 
, Блага 
) , globally, is a common cognomen. The surname Блага is characteristic of Romania, where it is quite a common surname, North Macedonia, and Bulgaria, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Romania, Ukraine, and North Macedonia. Much less frequently, Блага is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Blaga | Bulgaria, Romania, North Macedonia, Italy, Hungary |
| Блага | Kazakhstan, Belarus, Bulgaria, Russia, Ukraine |
|
блага алексова Macedonian archaeologist, MK (b. 1922) |
|
| блага николова димитрова Bulgarian writer, politician (1922-2003), BG (b. 1922) |
|
|
| блага петроска Macedonian sociologist and university teacher, MK (b. 1939) |
|
|
| блага петреска Macedonian singer, MK (b. 1947) |
|