Gilserberg is a municipality in the Schwalm-Eder district in Hesse, Germany.

Gilserberg lies at the foot of the Kellerwald, a low mountain range, nestled in the Kurhessen Highland on Federal Highway (Bundesstraße) B 3, 60 km from Kassel and 30 km from Marburg.

Together with the main centre, which also bears the same name as the whole municipality, the ten centres of Appenhain, Heimbach, Itzenhain, Lischeid, Moischeid, Sachsenhausen, Schönau, Schönstein, Sebbeterode and Winterscheid also belong to the community of Gilserberg.

At least four of the community's Jewish residents were murdered in Nazi death camps.

As part of Hesse's municipal reforms, the formerly independent communities of Gilserberg, Heimbach, Lischeid, Moischeid, Sachsenhausen, Schönau, Schönstein, Sebbeterode and Winterscheid voluntarily combined to form the community of Gilserberg on 1 January 1972.