Štramberská Trúba, Stone observation tower in Štramberk, Czech Republic.

Štramberská Trúba is a cylindrical stone observation tower that rises about 35 meters (115 ft) above the town of Štramberk. An interior staircase leads upward to a viewing gallery with information panels positioned at each window.

This tower was built in the 13th century as part of a defensive castle complex that once protected the region. In 1903, architect Kamil Hilbert from Prague oversaw a major reconstruction that restored and modernized the structure.

The name Trúba, Czech for "pipe" or "tube", refers to the tower's cylindrical form. A memorial plaque at ground level honours Adolf Hrstka, the tourism official whose initiative led to the tower's 1903 renovation. Two wooden shelters stand beside it: Jaroňkova útulna, decorated with paintings by Bohumír Jaronka, and Chata MUDr. Adolfa Hrstky, whose cellar holds the entrance to Slámova sluj cave.

Visitors enter through the adjacent Jaroňkov building, where tickets are purchased before climbing the tower. The same building houses a gallery displaying regional folk crafts and traditional art that can be viewed before or after the climb.

The tower's roof is shaped as a right circular conoid, a ruled surface formed by lines meeting a circle and two perpendicular lines. The tower stands 40 m high with a diameter of 10 m, on Zámecký vrch at 508 m above sea level. A plaque at ground level honours Adolf Hrstka, the tourism organiser behind the 1903 renovation.