← → The following lists events that happened during 2015 in Slovakia.

2015 is the first full year of the 4th President Andrej Kiska, elected as an independent candidate in the 2014.

2015 is the last full year of the 8th National Council.

Next parliamentary elections will be held on or before 5 March 2016.

The Robert Fico's Second Cabinet, elected in 2012 consisted solely from Direction – Social Democracy party (Slovak: Smer – sociálna demokracia, abbreviated Smer-SD), continues.