Byanka is of Czech origin, derived from the name Božena, which means 'merciful'. It has been used historically in the Czech Republic and Slovakia but remains relatively uncommon elsewhere.
The name Byanka experienced a significant peak in popularity during the late 1980s and early 1990s, with 38 births recorded in 1990 alone. However, its usage has steadily declined since then, with fewer than 15 births per year from 2000 onwards. Overall, there have been a total of 279 babies named Byanka between 1987 and 2010.