Germanic boar helmets or boar crested helmets are attested in archaeological finds from England, Denmark and Sweden, dating to Vendel and Anglo-Saxon periods, and Old English and Old Norse written sources. They consist of helmets decorated with either a boar crest or other boar imagery that was believed to offer protection in battle to the wearer. They have also been proposed to be a costume for the ritual transformation into a boar, similar to berserkers, and to be associated with Freyr.

In Swedish prehistory, the Vendel Period appears between the Migration Period and the Viking Age. The name is taken from the rich boat inhumation cemetery at Vendel parish church, Uppland. Unlike the preceding and succeeding eras, the Vendel Period left very few precious metal artifacts or runic inscriptions. Instead, it is extremely rich in animal art on copper-alloy objects. It is also known for guldgubbar, tiny embossed gold foil images, and elaborate helmets with embossed decoration similar to the one found at Sutton Hoo in England.