Tvrdošín District (okres Tvrdošín) is a district in the Žilina Region of central Slovakia. The district was first established in 1996; in 1923 it had been a part of Trstená District.
Municipalities
- Brezovica
- Čimhová
- Habovka
- Hladovka
- Liesek
- Nižná
- Oravský Biely Potok
- Podbiel
- Suchá Hora
- Štefanov nad Oravou
- Trstená
- Tvrdošín
- Vitanová
- Zábiedovo
- Zuberec