Jakobshorn, Mountain summit in Grisons, Switzerland.

Jakobshorn is a 2,590-metre summit at the north-western end of a ridge running between the Sertigtal to the south and the Dischmatal to the north, above Davos in the canton of Graubünden. A two-section cable car climbs from Davos Platz, and from the top three chairlifts, a short cable car and a T-bar serve wide blue, red and black pistes.

The first tow lift was installed at Jakobshorn in 1934, marking the start of winter sports development in the Davos region. This early installation opened the mountain to organized snow tourism and recreational activities.

The Jakobshorn is one of the five skiing areas of Davos Klosters Mountains and has been used for snowboarding and freestyle since early on. In the Jatzpark, four lines with kickers, rails and boxes are set up. The Bolgen area holds a super pipe and a kids' slope, and winter walkers and snowshoe hikers share the mountain.

The two-section cable car runs from Davos Platz up to the summit station above 2,600 metres; the second section was rebuilt in 2022 with barrier-free access and new cabins. On the mountain, three chairlifts, a short cable car and a T-bar serve the slopes, and since winter 2024/25 the Carjöl–Usser Isch chairlift has a mid-station entry for beginners heading to the blue practice piste. The main lifts also operate in summer, from July to October, for walkers.

The Jakobshorn's Bolgen area has an illuminated super pipe, and the Jatzpark snow park holds four lines with kickers, rails and boxes. Snowboarders and freestyle skiers used the mountain early on, and it remains a centre for these sports within Davos Klosters Mountains.