Eckardts-Tower, Observation tower in Coburg, Germany.

Eckardts-Tower is a 21-metre neo-Gothic tower of squared sandstone on the 432-metre Eckardtsberg, built in 1873 to resemble a medieval town-wall tower. Its projecting base storey has rusticated masonry and a pointed-arch portal marked S D 1873, with an oriel above and a crenellated parapet around the viewing platform. The interior is no longer open to the public.

Duke Ernst II had the tower built for 5,544 guilders to plans by court architect Carl Friedrich Wilhelm Streib; the foundation stone was laid on 3 May 1873 and work finished on 15 October 1873. Earlier schemes on the Eckardtsberg came to nothing: Peter Speeth's Gothic design of around 1810, Carl Alexander Heideloff's mausoleum of 1839-40 and a planned artificial ruin of 1852. The city of Coburg acquired the tower in 1917.

The tower is named after the Eckardtsberg, the 432-metre hill it stands on, not after a businessman. Duke Ernst II had it built for 5,544 guilders on land he bought from Paul Julius Reuter in 1872; Reuter, founder of the news agency, had been raised to baron the year before. From 1955 to 1960 the Coburg public observatory used the tower.

The tower interior has not been open to the public since January 2012, so the platform cannot be climbed. The structure is reached via a tree-lined avenue from the northeast and a stairway laid out on the west side. A relay transmitter of the Coburg chapter of the German Amateur Radio Club has stood on the tower since 1993.

The tower's interior has been closed to the public since at least January 2012, and since 1993 a relay transmitter of the German Amateur Radio Club's Coburg branch has stood on the tower. From 1955 to 1960 the Coburg public observatory was housed in the Eckardtsturm.