Sirmione is a comune located in the province of Brescia within the Lombardy region of northern Italy. The municipality is situated along the shores of Lake Garda and is bounded by Desenzano del Garda in Lombardy to one side, and Peschiera del Garda in the province of Verona and the Veneto region on the other.
The town features a historical center located on the Sirmio peninsula. This distinctive geographical feature divides the lower portion of Lake Garda, providing a central location for the area's notable landmarks and heritage sites.