Oberharz (German pronunciation: [ˈoːbɐhaːɐ̯ts]) is a former Samtgemeinde ("collective municipality") in the district of Goslar, in Lower Saxony, Germany.

It was situated in the western part of the Harz, approx.

It was disbanded in January 2015, when its member municipalities merged into the town Clausthal-Zellerfeld.

The Samtgemeinde Oberharz consisted of the following municipalities:

This Goslar district location article is a stub.