Dolná Súča ( Hungarian: Alsószúcs ) is a village and municipality in Trenčín District in the Trenčín Region of north-western Slovakia.

In historical records the village was first mentioned in 1208.

The municipality lies at an altitude of 285 metres and covers an area of 26.319 km². It has a population of about 2917 people.

The records for genealogical research are available at the state archive "Statny Archiv in Bratislava, Slovakia"

• Roman Catholic church records (births/marriages/deaths): 1688-1896 (parish A)
• Lutheran church records (births/marriages/deaths): 1783-1895 (parish B)

• List of municipalities and towns in Slovakia

• https://web.archive.org/web/20080111223415/http://www.statistics.sk/mosmis/eng/run.html
• Surnames of living people in Dolna Suca

48°57′N 18°02′E / 48.950°N 18.033°E / 48.950; 18.033