Bulgarian noble titles

thumb|Simeon I of Bulgaria, the first Bulgarian tsar and the first person who bore the title "tsar", by [[Alphonse Mucha|alt=Alphonse Mucha's The Slav Epic cycle No.4: Tsar Simeon I of Bulgaria (1923)]] thumb|Reception of the Tsar of Russia in the Moscow Kremlin, by [[Ivan Makarov]] thumb|Crowning of Stefan Dušan, [[Emperor of the Serbs, as tsar, by Paja Jovanović]]

thumb|Portrait of Russian boyar Pyotr Potemkin by [[Godfrey Kneller]] thumb|Russian boyars in the 16th–17th centuries

200px|thumb|Until Boris I of Bulgaria|Boris I (852–889), the title of the Bulgarian monarchs was (). His son, Simeon I (893–927), adopted the title [[tsar (emperor), which became the title of the subsequent Bulgarian rulers.]]

heir apparent to the emperor or senior court official

Tarkhan (, or ; ; ; ; ; alternative spellings Tarkan, Tarkhaan, Tarqan, Tarchan, Turxan, Tarcan, Turgan, Tárkány, Tarján, Tarxan) is an ancient Central Asian title used by various Turkic, Hungarian, Mongolic, and Iranian peoples. Its use was common among the successors of the Mongol Empire and Turkic Khaganate.

Sebastokrator (, ; ; ), was a senior court title in the late Byzantine Empire. It was also used by other rulers whose states bordered the Empire or were within its sphere of influence (Bulgarian Empire, Serbian Empire). The word is a compound of sebastós (, the Greek equivalent of the Latin Augustus) and krátōr ('ruler', the same element as is found in autokrator, 'emperor'). The wife of a Sebastokrator was named sebastokratorissa (, sevastokratórissa) in Greek, sevastokratitsa () in Bulgarian and sevastokratorica in Serbian.

Župan is a noble and administrative title used in several states in Central and Southeastern Europe between the 7th century and the 21st century. It was (and in Croatia still is) the leader of the administrative unit župa (or zhupa, županija). The term in turn was adopted by the Hungarians as ispán and spread further.

Baghatur (also Batur, Batyr, Baatar, etc.) is a historical Turkic and Mongolic honorific title, in origin a term for "hero", "valiant warrior", "brave". The Papal envoy Plano Carpini ( 1185–1252) compared the title with the equivalent of European Knighthood. thumb|Illustration of "Koblandy Batyr," a Kazakh [[epic poem, on a Soviet stamp (1988).]] The word was common among the Mongols and became especially widespread, as an honorific title, in the Mongol Empire in the 13th century; the title persisted in its successor-states, and later came to be adopted also as a regnal title in the Ilkhanate

The Ichirgu-boila or Chargobilya (; Old Bulgarian: , ) was a high-ranking official in the First Bulgarian Empire. The holder of the post was the commander of the garrison of the capital and was the third most important person in the state after the ruler and the Kavkhan. In peace-time the ichirgu-boila had diplomatic functions. According to some data the ichirgu-boila personally commanded a squad of 400 heavy cavalrymen.

The kavkhan (;) was one of the most important officials in the First Bulgarian Empire.

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Kanasubigi (), possibly read as Kanas Ubigi or Kana Subigi, was a title of the early Bulgar rulers of the First Bulgarian Empire. Omurtag (814–831) and his son Malamir (831–836) are mentioned in inscriptions as Kanasubigi.