The Bulgarian Navy (Bulgarian: Военноморски сили на Република България, romanized: Voennomorski sili na Republika Balgariya, lit. 'Naval Forces of the Republic of Bulgaria') is the navy of the Republic of Bulgaria and forms part of the Bulgarian Armed Forces.
The Principality of Bulgaria established its navy soon after its creation, in 1879, to operate on the Danube river and the Black Sea, but the young country could spend only limited resources on warships. In the conflicts of the 20th century in which Bulgaria was involved - the Balkan Wars, World War I and World War II, the navy played a limited role, mainly protecting Bulgarian harbors and shipping. The navy's greatest combat feat was a torpedo attack against an Ottoman cruiser during the First Balkan War that forced the ship to retreat.