Haferberg, Mountain summit in the Kaufunger Wald, Hesse, Germany

Haferberg is a densely wooded hill in the Kaufunger Wald, reaching 580.4 m above sea level. Its summit lies about 40 m west of the Hesse–Lower Saxony border, on the Lower Saxon side, within the Münden Nature Park. The hill sits 1.25 km northwest of the Umschwang pass, 4.5 km east of Nieste and just under 4 km west of Kleinalmerode.

The sources record no oat farming or other etymology for the name Haferberg; they document only the hill's geography. They place its summit about 40 m west of the Hesse–Lower Saxony border, on the Lower Saxon side, within the Münden Nature Park, and note that no roads lead to the top.

The Haferberg stands within the Münden Nature Park, where numerous hiking paths connect to the Frau Holle cultural trail system.

No roads lead to the summit; the usual approach is on foot from the Umschwang pass (446 m), 1.25 km to the southeast, via the Frau-Holle-Pfad, which crosses the wooded top. The same path continues southeast over the pass to the Mühlenstein (607.2 m).

The summit lies about 40 metres west of the Hesse–Lower Saxony border, on the Lower Saxon side, so the state line runs just east of the top. Four streams rise on its flanks: the Rautenbach and Hungershäuser Bach feed the Werra, while the Wengebach and Endschlagbach drain towards the Nieste and the Fulda.