Lipník (Hungarian: Hársas) is a village and municipality in Prievidza District in the Trenčín Region of western Slovakia.
In historical records the village was first mentioned in 1432.
The municipality lies at an altitude of 330 metres and covers an area of 5.487 km². It has a population of about 477 people.
Coordinates: 48°47′N 18°43′E / 48.783°N 18.717°E / 48.783; 18.717