Tracian Sea was a great body of water on the planet Bajor. Some myths said that the city of B'hala sunk underneath the Tracian Sea. (DS9 - Millennium novel: The Fall of Terok Nor)

the planet Bajor
cities and settlements	Adarak • Amantha • Ashalla • Batal • B'hala • Bar'trila • Bennikar • Brintall • Calash • Dinaaj • Elemspur • Hathon • Ilvia • Jabelon • Jalanda • Janir • J'raal • Karvis • Lacroya • Laksie • Lasuma • Lecelon • Nivan • Qui'al • Relliketh • Shar Rapha • Sidau • Singha • Sorshaq • Tamulna • Tempasa • Tilar • Tindar • Undalar • Vekobet • Yvrig • Yyn
provinces and regions	Dahkur Province • Ducrain Province • Hedrikspool Province • Hill Province • Janitza Province • Jerad Province • Kendra Province • Lotha Province • Musilla Province • Rakantha Province • Tozhat Province • Wyntara Mas Province
landmarks and geography	Akorem's Rock • Ir'Abehr Shield • Mount Ba'lavael • Okana Desert • Palace of the Akorem • Temple of the Prophets
continents and landmasses	Tozhat • Elemspur • Perikian Peninsula • Torah'la
bodies of water	Borris River • Inland Sea • Korvale Ocean • Lorus River • River Taaj • Teejan River • Tracian Sea • Valor Ocean • Yolja River