Salka (Hungarian: Ipolyszalka) is a village and municipality in the Nové Zámky District in the Nitra Region of south-west Slovakia.

In historical records the village was first mentioned in 1156.

The municipality lies at an altitude of 110 metres and covers an area of 26.066 km².

The village has a small public library, a gym and a football pitch.

This Nitra Region geography article is a stub.