Bziny is a village and municipality in Dolný Kubín District in the Zilina Region of northern Slovakia.
In historical records the village was first mentioned in 1345.
The municipality lies at an altitude of 502 metres and covers an area of 5.842 km². It has a population of about 530 people.
The records for genealogical research are available at the state archive "Statny Archiv in Bytca, Slovakia"
- Roman Catholic church records (births/marriages/deaths): 1787-1896 (parish A)
Coordinates: 49°14′N 19°19′E / 49.233°N 19.317°E