Vallnäs is a village in Eksjö Municipality, in Jönköping County, Sweden. Vallnäs lies at 163 m above sea level. The nearest city is Västervik, 72 km to the east. Among the landmarks around are Hässleby Church (5.5 km), Bellö Church (9.8 km) and Ingatorp Church (4.3 km). Among the natural features are Rumskulla oak (16.3 km).