Åsa grave field, Stone ship and grave field in Ytterselö, Sweden.

Åsa grave field is a burial ground on a ridge north of Stallarholmen on Selaön, with about 250 monuments: 45 burial mounds, some 160 stone settings, a 33-metre stone ship called Åsa domarsäte and a seven-stone stone circle west of the road.

Åsa grave field was in use from the late Germanic Iron Age, from around 400 AD, through the Vendel period of 650–800 AD, so it predates the Viking Age. Its roughly 250 monuments include 45 burial mounds and about 160 stone settings. The ship setting Åsa domarsäte, 33 m long and 8 m wide, is undated and now has 18 of its original 24 stones. Runestone Sö 200 was found in 1602 by Johannes Bureus and carved in the 11th century.

The stone ships at Åsa grave field demonstrate maritime connections of early Scandinavian societies and their beliefs about journeys after death.

The grave field lies on a ridge north of Stallarholmen on Selaön, with the runestone Sö 200 beside the old road and the domarring of seven stones west of it. The ground is grassy and uneven, so sturdy shoes help; the protected backsippa grows here and should not be picked or trampled.

The rune stone Sö 200, found in 1602 by Johannes Bureus, was carved by an anonymous rune master to whom three other inscriptions on Selaön are attributed. The names Glägge and Arnsten appear in no other known runic inscription.