The Battle of Mobekk was fought on 18 May 1808, between Swedish and Norwegian forces, during the Swedish invasion of Norway. After the Swedish victory at Lier, Bernhard Ditlef von Staffeldt ordered Johan Georg Ræder to attack the right flank of Gustaf Mauritz Armfelt, along the Skinnarbøl river. The Norwegians managed to force a few Swedish positions across the river, but met fierce resistance at the Swedish redoubt at ; Ræder conducted three storming attempts, each of them being repulsed, before retreating with his force, after five hours of fighting. The battle had no strategic effect, as Armfelt retreated out of Norway in May and June, after misinterpreting the orders from the Swedish king, Gustav IV Adolf, which advocated for him to act defensively.