Hokejsko drsalno društvo Olimpija Ljubljana, commonly referred to as HDD Olimpija or simply Olimpija, was a Slovenian professional ice hockey club from Ljubljana. They played their home games at the Tivoli Hall. Olimpija has won 13 Yugoslav championships and 15 Slovenian championships. They won ten consecutive titles between 1995 and 2004.

The Slovenian Hockey League or the National Championship is the highest level ice hockey league in Slovenia. The championship phase is contested after the regular season to determine the national champion.