Flåttenmoen is a village in Larvik Municipality, in Vestfold, Norway. Flåttenmoen lies at 73 m above sea level, in the Scandinavian mountains. The nearest city is Porsgrunn/Skien, 25 km to the southwest. Among the landmarks around are Høyjord Stave Church (14.2 km), Gokstad Mound (29 km) and Gjerpen Church (19.3 km). Among the natural features are Rauberflaket (11.8 km) and De brendte åsane (5.0 km).