Serbia and Slovenia share a long history of relations, with formal interstate ties officially established on December 9, 2000 in the aftermath of the breakup of common Yugoslav state.

Since the reestablishment of relations, Slovenia has consistently been among the strong advocates of Accession of Serbia to the European Union.

[5] During the 2008 Slovenian Presidency of the Council of the European Union the country strongly supported the resumption of EU-Serbia negotiations, recognizing Serbia's critical role in ensuring regional stability.

[6] In October 2024, during his visit to Ljubljana, Serbian Foreign Minister Marko Đurić expressed Serbia's support for the possibility of a Slovenian official taking the EU enlargement commissioner role, citing Slovenia's deep understanding of the region and its consistent support for Serbia's EU path.

[7] In December of that year Marta Kos was elected to serve as the European Commissioner for Neighbourhood and Enlargement.