Italian-Slovenian relations are foreign relations between Italy and Slovenia.
The two countries share 199 km of border.
Italy and Slovenia established diplomatic relations in 1992. Italy has an embassy in Ljubljana and a consulate in Koper. Slovenia has an embassy in Rome and consulates in Trieste, Florence and Milan.
In addition to the autochthonous minorieties, the Istrian Italians in Slovenia and the Slovene Italians in Italy, there are around 3,200 people of Slovenian descent living in Italy as of 2010. Approximately 400.000 Italians visit Slovenia every year.
Even if their relationship is not having much conflict, some Slovenian nationalists do not recognize Italian sovereignty over the region of Trieste, claiming it belonged to Slovenia in the past history. Most Italians deny the Slovenian claim. Despite this, the relations are excellent.