The Principality of Karvuna or Despotate of Dobruja (Bulgarian: Добруджанско деспотство or Карвунско деспотство) was a 14th-century quasi-independent polity in the region of modern Dobruja, that split off from the Second Bulgarian Empire under the influence of the Byzantine Empire.
The principality's name is derived from the fortress of Karvuna (present Balchik), mentioned in Bulgarian and Byzantine documents and Italian portolans of the 14th century as its first capital, and located between Varna and Cape Kaliakra.
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