The Calenberg is a hill in central Germany in the Leine depression near Pattensen in the municipality of Schulenburg. It lies 13 km west of the city of Hildesheim in south Lower Saxony on the edge of the Central Uplands. It is made from a chalk marl slab (Kalkmergelbank), has a height of 70 m above NN and was formed almost 100 million years ago at the beginning of the Upper Cretaceous series in Cenomanian stage. The Calenberg became historically important as a result of the fort, stronghold and castle built as the main residence of the House of Hanover. The hill has given its name to numerous other entities (see ).
The syllables Kal, Kalen-, Calen- in the word Calenberg are derived from the word kal in the Middle High German and Middle Low German languages and mean kahl i.e. "bare", "stripped", "unwooded". Name formations using Kal, Kalen or Calen could refer to its geological base (rock, stone). The syllable -berg goes back to the Old High German word berg, to the Middle High German berc(g), to the Middle Low German berch and the colloquial word barch. It can mean "mountain", "hill" or "knoll". So the word Calenberg means something like kahler Berg or "bare hill".
The syllable Klei in the word Klei-Kamp comes from the word klei in Old High German and Middle Low German and to the dialectic word klaibodden and means: heavy loam soil, heavy soil, thick clay. The syllable -Kamp goes back to the Old High German word champf as well as the Middle Low German and dialectic word kamp and means an "enclosed piece of land". From the middle of the 17th century onwards it was also used for large plots of private land even if they were unenclosed.
The syllable Kälber in the word Kälber-Kamp comes from the word kalver in Middle Low German and the colloquial word kälwer and means "calves". Fields known as Kälber were used to graze calves.