Byala Reka (Bulgarian: White Rriver)
Maritsa
Rusokastrenska Reka (Bulgarian: River of Rusokastro)
Topolnitsa (in Bulgarian, Topola means poplar)
Rilska reka
Cherni Lom (Bulgarian: Black Lom)
Dospat
Fakiyska Reka
Provadiyska reka (Bulgarian: River of Provadia)
Zlatna Panega (Bulgarian: Golden Panega)
Matevir
Kriva
Beli Lom (Bulgarian: White Lom)
Bela Mesta (Bulgarian: White Mesta)
Suha reka (Bulgarian: Dry river)
Veleka
Yantra
Erma
Beli Vit (Bulgarian: White Vit)
Osam
Danube
Ropotamo
Golyama Kamchiya (Bulgarian: Big Kamchiya)
Lebnitsa
Cherni Vit (Bulgarian: Black Vit)
Lom
Deleynska Reka
Mesta
Rusenski Lom
Tundzha
Varbitsa
Voynishka Reka 
Iskar
Luda Yana (Bulgarian: Crazy Yana)
Cherni Iskar
Archar
Shirokolashka Reka (Bulgarian: River of Shiroka Laka)
Stryama
Strumeshnitsa
Krumovitsa
Kamchiya
Luda Kamchiya (Bulgarian: Crazy Kamchiya)
Vacha
Stara Reka (Bulgarian: Old river)
Cherna Mesta (Bulgarian: Black Mesta)
Struma
Vit
Palakariya
Bistritsa
Batova Reka
Rositsa
Sazliyka
Tsibritsa
Mechka (Bulgarian: Bear)
Ogosta
Dzhulyunitsa
Pyasachnik (Bulgarian: Sandstone)
Arda
Bunayska