The Yarm helmet is a circa 10th-century Viking Age Anglo-Scandinavian helmet that was found in Yarm in the North Riding of Yorkshire, England. It is the first relatively complete Anglo-Scandinavian helmet found in Britain and only the second relatively complete/intact Viking helmet discovered in north-west Europe.
The helmet was discovered in the 1950s by workmen digging pipe trenches in Chapel Yard, Yarm, near the River Tees. Research led by Chris Caple of Durham University, and published in 2020, established that the helmet dates to the 10th century.
It is on display at the Preston Park Museum in Stockton-on-Tees. It is on loan from Yarm Town Council.
The iron helmet is made of bands and plates, riveted together, with a simple knop at the top. Below the brow band it has a "spectacle mask", a guard around the eyes and nose forming a sort of visor, which suggests an affinity with earlier Vendel Period helmets. The lower edge of the brow band is pierced with circular holes, where a mail curtain or aventail may have been attached.
The only other near-complete Viking helmet is the Gjermundbu helmet in Norway. Other helmet remains exist, such as the Tjele helmet fragment, two fragments from Gotland, and one fragment from Kyiv.