Bačka (Hungarian: Bacska) is a village and municipality in the Trebišov District in the Košice Region of eastern Slovakia.
In historical records the village was first mentioned in 1214 as Bocskay family's property. It was recorded in 1214 as Becheka, in 1299 as Bachka, in 1323 Buchka, and in 1332 as Bachka). Until 1918 and from 1939 to 1944 it belonged to Hungary.
The village lies at an altitude of 104 metres and covers an area of 9.578 km2. It has a population of about 600 people.
The village is 100% Hungarian.
The village has a public library
The records for genealogical research are available at the state archive in Košice (Slovak: Štátny archív v Košiciach).
48°26′N 22°03′E / 48.433°N 22.050°E