Jaberg is a municipality in the Bern-Mittelland administrative district in the Canton of Bern in Switzerland.

Jaberg is first mentioned in 1259 as Jagberc.

The oldest trace of a settlement in the area is a Hallstatt burial mound. During the Early Middle Ages the same area was used as a cemetery. A small hill fort from the same era indicates that there was probably a village near the Jabergwald. During the Middle Ages wooden castle was built near the Aare ferry.