This is a list of the origins of the names of provinces of Bulgaria.
(1) Proto-Slavic, or
(2) Proto-Indo-European (PIE), or
(3) Iranian
(4) Varangians
(1) possible Proto-Slavic etymology: varn ("black"), non-metathesized group CorC, later vran; or from Bulgarian var ("lime"),
(2) possible PIE etymology: PIE root we-r- (water); cognate: Varuna
(3) possible Iranian etymology: var ("camp", "fortress")
(2) Varanasi? (3) , Hungarian Vár?