Skalna Klet Stadium (Slovene: Stadion Skalna klet) or simply Skalna Klet is a multi-purpose stadium in Celje, Slovenia. Opened in 1904, the stadium underwent numerous renovations, the most recent one in 2019. It was used for football matches and was the home ground of the Slovenian PrvaLiga team NK Celje until 2003. Now it is used only as a training facility.[1]