Radeče is a small town in the Lower Sava Valley in eastern Slovenia. It is located in the Sava Hills on the right bank of the Sava River at the confluence with Sopota Creek. It is the seat of the Municipality of Radeče and part of the traditional province of Lower Carniola. The town and the municipality are now included in the Lower Sava Statistical Region; until January 2014 they were part of the Savinja Statistical Region.