Taberna (Stream)
Legazpi
Rivers and streams
Talaiako erreka (Stream)
Donostia, Errenteria
Talaierreka (Stream)
Elgoibar
Tantaegi (Stream)
Idiazabal
Tantai (Stream)
Legazpi
Tantaizabaleko erreka (Stream)
Oiartzun
Tantarieta (Stream)
Beasain, Beizama
Tartatzu (Stream)
Beasain, Olaberria
Tellagorri (Stream)
Hondarribia
Telleri (Stream)
Ezkio-Itsaso, Ormaiztegi
Telleri (Stream)
Donostia
Telleri (Stream)
Hernani
Telleri (Stream)
Beasain
Telleria (Stream)
Oñati
Telleria (Stream)
Oñati
Tinto (Stream)
Berastegi
Tolarieta (Stream)
Hernani, Urnieta
Tolosamina (Stream)
Berastegi
Tomasenbordako erreka (Stream)
Oiartzun
Tomaserreka (Stream)
Hondarribia
Tonpez (Stream)
Irun
Tornola (Stream)
Oiartzun
Torrea (Stream)
Tolosa
Torreberrierreka (Stream)
Errezil
Torrerreka (Stream)
Azkoitia
Tortoaga (Stream)
Zizurkil
Trabaleku (Stream)
Errenteria
Trango (Stream)
Eibar
Trangoerreka (Stream)
Azkoitia
Trangoeta (Stream)
Bergara
Trankatx (Stream)
Hernani, Urnieta
Tranpazubi (Stream)
Urnieta
Tranpazulo (Stream)
Larraul
Tranpeta (Stream)
Azkoitia, Deba
Trapadaerreka (Stream)
Oiartzun
Traska (Stream)
Segura, Zegama
Triku (Stream)
Idiazabal
Trikueta (Stream)
Andoain
Trikulantegi (Stream)
Urnieta
Troi (Stream)
Idiazabal, Mutiloa, Segura
Troia (Stream)
Donostia, Usurbil
Troio (Stream)
Berastegi, Elduain
Trokoniz (Stream)
Oñati
Troska (Stream)
Aia, Zarautz
Troska (Stream)
Aia, Zestoa
Troska (Stream)
Alkiza
Troskaerreka (Stream)
Segura, Zegama
Troskaerreka (Stream)
Bergara
Troskaerreka (Stream)
Villabona
Troskamuño (Stream)
Lizartza, Orexa