Ivachnová is a village and municipality in Ružomberok District in the Žilina Region of northern Slovakia.
In historical records, the village was first mentioned in 1469.
The municipality lies at an altitude of 508 metres and covers an area of 5.894 km². It has a population of about 500 people.
The records for genealogical research are available at the state archive "Statny Archiv in Bytca, Slovakia"
- Romancatholic church records (births/marriages/deaths): 1687-1901 (parish B)
- Lutheran church records (births/marriages/deaths): 1783-1895 (parish B)
Coordinates: 49°06′N 19°25′E / 49.100°N 19.417°E