Jasov (German: Joß; Hungarian: Jászó) is a small town and municipality in Košice-okolie District in the Kosice Region of eastern Slovakia.

This is the biggest monastery complex in Slovakia and the St John The Baptist church, which forms its centrepiece, is considered one of the country's most important late-Baroque buildings.

The monastery has 365 windows, 12 chimneys and four gates (representing the days, months and seasons of the year).

Jasov lies on the edge of the Slovenský Kras, an area of dramatic limestone (or karst) landscapes.

The nearby valley between Moldava nad Bodvou and Rožňava, with its wide bottom, high cliffs and a picturesque gorge (at Zádiel), is typical.