The dolmen at Kuhholzberg, also called Steingrab Kuhholzberg, is also known as Birkenmoor 3 and Sprockhoff no. 120. It is a Neolithic megalithic stone grave near the village of Birkenmoor in the Schwedeneck municipality in Schleswig-Holstein, Germany.

This megalithic system of the funnel beaker culture was created between 3500 and 2800 BCE. The dolmen is located in an open field about 35 m south of state road 44 near Kuhholzberg. The large bearing stones and the capstone of the burial chamber have been preserved – nothing of the original mounds has been preserved. The dolmen is one of the large stone graves near Birkenmoor, which have been preserved on the Dänischen Wohld and are listed as protected monuments.