Sandbjerg is a former estate and manor house 5 km (3.1 mi) north of Sønderborg in the southeast of Jutland, Denmark.
In 1788, Conrad Georg Reventlow (1749–1815) commissioned Christian August Bohlsmann to build a mansion overlooking the Alssund on the east side of Mølle Sø.
[3] After retiring from the navy in 1795, Reventlow spent extended periods at Sandbjerg where he enjoyed good food and drink prepared by his French chef, Charles Maton.
[4] In the 1850s, General Frederk Bülow who was victorious at the Battle of Fredericia in 1849, spent several summers on the estate, where he died in 1858.
After her husband died 1945, Ellen Dahl opened the residence to cultural and scientific figures and, in 1954, gave it to Aarhus University.