Schlossberg, Summit and park complex in Freiburg im Breisgau, Germany.

The Schlossberg is a forested peak above Freiburg that features walking routes through woods and open areas. The terrain offers multiple pathways with sections of shade and open ground, allowing visitors to choose their own pace and route.

The location held military importance from medieval times onward, with fortifications added in the 17th century to defend the city below. These defensive structures shaped the character of the hill and remain visible today.

The hill's name comes from the "Castrum de Friburch" built around 1091 by Duke Berthold II of Zähringen. Since 2018 the Schlossbergfest has been held for the 35th time, with music groups and food stalls; it was cancelled in 2019. The Greiffeneggschlössle, built in 1805, now houses a restaurant with a chestnut beer garden.

The Schlossbergbahn, a funicular (Schrägaufzug) opened in July 2008, replaced the old Schlossberg cable railway and runs up to the Burghaldenring, the forest road circling the hill at half height. From there the Kanonenplatz, just above the Old Town, gives the closest view; the Schlossbergturm on the Salzbüchsle is reached by a staircase of 251 steps with 13 landings. Pedestrians can also use the Schlossbergsteg, the Schwabentorsteg and the Hermannsteg.

Inside the hill, beer and vegetable cellars were converted into air-raid shelters during the war; the main entrance lay on the west side. In the Cold War the linked bunkers were meant to protect 5,000 people, with showers, toilets and kitchens. In early 2021 nine homeless people renovated some of the 40 rooms before police cleared the 2.3-kilometre labyrinth.