Oľka is a village and municipality in the Medzilaborce District in the Prešov Region of far north-eastern Slovakia.
In historical records the village was first mentioned in 1408.
The municipality lies at an altitude of 250 metres and covers an area of 31.459 km². It has a population of about 350 people.
Coordinates: 49°09′N 21°50′E / 49.150°N 21.833°E / 49.150; 21.833
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