Rudník (Hungarian: Rudnok) is a village and municipality in Košice-okolie District in the Košice Region of eastern Slovakia.
In historical records the village was first mentioned in 1255.
The village lies at an altitude of 314 metres and covers an area of 23.004 km².It has a population of about 610 people.
The population is almost entirely Slovak in ethnicity.
The village has a general store. In the village is the historic church of St. Juraja (St. George) and the House of Culture (social gathering hall). Three kilometers above the village is the church of St. Anne.
There is a bus line from Košice to the village.