Radarstellung Kalkhorst, Military radar station in Kalkhorst, Germany.

Radarstellung Kalkhorst is an active Bundeswehr military installation located north of the village of Kalkhorst, near the Baltic coast in northern Germany. It is equipped with a D-band phased array radar system used for continuous airspace monitoring over the region.

During World War II, the Wehrmacht operated a Würzburg-Riese radar at this site for air defense purposes. After the war, the Bundeswehr took over the location and updated it through several rounds of technical renewal.

The site lies about 500 metres north of the Elmenhorst district and one kilometre south of the Baltic coast. Its name comes from the municipality of Kalkhorst in Nordwestmecklenburg, though the installation itself stands outside the village. The surrounding fields and the nearby coast are what visitors see when passing on the road.

The site is an active military base and cannot be entered without special authorization, so a visit from the outside is the only option for most people. It lies about 500 metres north of the Elmenhorst district and about one kilometre south of the Baltic coast, where the radar structure is visible above the treeline.

The station's current radar building dates from a replacement construction carried out between September 1993 and 1996. In 2013 it was announced that automation would cut the workforce from 30 soldiers and 6 civilian employees to 11 in total.