Omšenie (Hungarian: Nagysziklás) is a village and municipality in the Trenčín District of the Trenčín Region in northwestern Slovakia.

In historical records, the village was first mentioned in 1332.

The municipality lies at an altitude of 322 metres and covers an area of 24.361 km2.

The nickname of the village is "Omš".

This Trenčín District location article is a stub.