The People's Republic of Bulgaria (PRB; Bulgarian: Народна Република България (НРБ) Narodna Republika Bǎlgariya (NRB)) was the official name of Bulgaria, when it was a socialist republic.
Folkerepublikken Bulgarien (bulgarsk: Народна република България (НРБ) Narodna republika Bǎlgariya (NRB)) var det officielle navn for Bulgarien, da landet var en socialistisk republik.