Koválov (Hungarian: Nagykovalló) is a village and municipality in Senica District in the Trnava Region of western Slovakia.

In historical records the village was first mentioned in 1392.

The municipality lies at an altitude of 213 metres and covers an area of 13.620 km2.

The records for genealogical research are available at the state archive "Statny Archiv in Bratislava, Slovakia" Media related to Koválov at Wikimedia Commons

This Trnava Region geography article is a stub.