The Gundestrup cauldron is a richly decorated silver vessel, thought to date from between 200 BC and 300 AD, or more narrowly between 150 BC and 1 BC. This places it within the late La Tène period or early Roman Iron Age. The cauldron is the largest known example of European Iron Age silver work. It was found dismantled, with the other pieces stacked inside the base, in 1891, in a peat bog near the hamlet of Gundestrup in the Aars parish of Himmerland, Denmark. It is now usually on display in the National Museum of Denmark in Copenhagen, with replicas at other museums; during 2015–16, it was in the UK on a travelling exhibition called The Celts.

The archaeology of Northern Europe studies the prehistory of Scandinavia and the adjacent North European Plain, roughly corresponding to the territories of modern Sweden, Norway, Denmark, northern Germany, Poland and the Netherlands.