Uetliberg TV-tower, Television tower on Uetliberg mountain, Zurich, Switzerland

The Uetliberg TV-tower is a 186.7-metre reinforced-concrete tower on the Uetliberg at 854 m above sea level, within the city of Zurich. Its three-legged concrete shaft rises 55.2 m, topped by a 111 m steel tube and a 20.5 m glass-fibre-reinforced plastic tip. At 46.4 m, an operating cabin clad in polycarbonate rings the shaft.

The first transmission structure was built on Uetliberg in 1953 and enabled the first television broadcast in Switzerland. The current structure was completed in 1990 as a replacement to meet growing broadcasting needs.

The tower serves as a broadcast hub for radio and television in the German-speaking region around Zurich. It remains a recognizable landmark that shapes the area's skyline.

The tower is not open to visitors, but can be reached by several hiking trails that lead to the summit of Uetliberg. The climb is part of a popular walking destination near Zurich.

The tower's 11-metre-deep foundation, 16 metres across, weighs 2,250 tonnes; the concrete shaft adds 2,050 tonnes and the steel top 240 tonnes. At the assumed maximum wind speed of 220 km/h, the tip sways up to 2.2 metres from the vertical. Around 140 tonnes of reinforcing steel and 54 kilometres of 7-millimetre prestressing wire went into the concrete.