Keť (Hungarian: Érsekkéty) is a village and municipality in the Levice District in the Nitra Region of Slovakia.
In historical records the village was first mentioned in 1308.
The village lies at an altitude of 150 metres and covers an area of 19.65 km². It has a population of about 680 people.
The village is approximately 94% Magyar and 6% Slovak.
The village has its own birth registry.
The village has a public library a gym and soccer pitch.
Coordinates: 47°58′N 18°34′E / 47.967°N 18.567°E