Aussichtsturm Kuckholzklippe, Steel observation tower in Göttingen district, Germany.

The Kuckholzklippe observation tower is a steel structure in Göttingen district, standing at 565 meters elevation. Seventy-five steps lead to two platforms where visitors can survey views across the Upper Harz region.

The tower was built on behalf of the Harzklub branches of Buntenbock, Clausthal, Lerbach and Osterode by the Royal Smelting Works Office in Lerbach for 2,625 Reichsmarks in steel lattice and inaugurated on 1 August 1897. The Harz Club renovated it in 1992 for about 80,000 Deutsche Marks, and in 1994 it was designated a monument.

The name comes from Kuhkolk, a water source where mountain cows gathered, and transformed through linguistic change into Kuckholz.

The tower connects to several hiking trails starting from Lerbach village and the Prinzenteich parking area, making it easy for visitors to explore the surrounding terrain. It is best visited during daylight hours in clear weather when distant views are optimal.

The stamp box of Harzer Wandernadel checkpoint no. 139 hangs not in the tower but in the Alfred-Schiecke-Hütte, a shelter the Clausthal-Zellerfeld Harzklub branch built in 1964 about 100 m north-northwest of the tower, beside a path junction at 569.1 m. The tower itself was declared a Baudenkmal in 1994.