List of caves in Slovenia

The following article is a list of caves in Slovenia. About 43% of Slovenian territory is of karst nature and over 14,000 caves (2021) are known in Slovenia.

List of caves by number of visitors
The following show caves were the most visited in 2008 (ordered by the number of visitors):
 * 1) Postojna Cave: 548,424 visitors
 * 2) Škocjan Caves: 100,299 visitors
 * 3) Hell Cave: 13,638 visitors
 * 4) Predjama Cave: 6,133 visitors
 * 5) Cross Cave: 4,935 visitors
 * 6) Mayor Cave: 4,008 visitors
 * 7) Pivka Cave and Black Cave: 3,509 visitors

List of longest and deepest caves
It includes all the caves in the Slovenian cave registry, at least 1,000 m long and at least 300 m deep (March 2023). The list is sorted on a cave score, obtained as a sum of normalized length (divided by the length of the longest cave, multiplied by 100) and depth (divided by the depth of the deepest cave times 100) - maximal possible score would be 200.