The Dozaria system was a planetary system in the Alpha Quadrant. This system had only one inhabitable planet – Dozaria.
In 2372, a Ferengi ship visited this star system, where its commanding officer found a hull fragment of the Ravinok. (DS9: "Indiscretion")
This system's quadrant of origin is inferred based on its proximity to the Breen system and the Cardassian Union, whose positions were seen in the star chart appearing in the Star Trek: Picard episode "Maps and Legends".
According to Star Trek: Star Charts (p. 46) and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"), the primary of the Dozaria system was a B-class star.