Horná Seč ( Hungarian: Felsőszecse) is a village and municipality in the Levice District in the Nitra Region of Slovakia.
In historical records the village was first mentioned in 1355.
The village lies at an altitude of 158 metres and covers an area of 8.303 km². It has a population of about 490 people.
The village is approximately 75% Slovak, 23% Magyar and 2% Czech.
The village has a public library and a football pitch.
The records for genealogical research are available at the state archive "Statny Archiv in Nitra, Slovakia"
48°12′N 18°33′E / 48.200°N 18.550°E