Ström House, Manor house in Lilla Edet Municipality, Sweden

Ström House is a two-storey manor house with a pale yellow facade and a shallow roof, its central block flanked by two slightly projecting end sections with flat rooflines above a plain cornice. A row of tall rectangular windows runs across the upper storey, with smaller windows and several arched openings below, above a low stone base. It stands on the site of the 1685–1691 wooden manor, rebuilt in 1852 to Edvard Medén's drawings and said to copy Ascheberg's house.

The estate is first mentioned in 1320 as a gift to the Hospital of St. Stephen in Tønsberg. In 1685–1691 Rutger von Ascheberg built a timber manor with two wings and a slate roof on the hill where the present house stands; the buildings were painted red in 1685, the earliest known record of red paint in Bohuslän. That house was demolished or burned in 1851, and the current building, designed by Edvard Medén, was completed in 1852.

The building transformed from a private residence to a conference facility in the 1980s before becoming a preschool and daycare center in 2007.

Ström House stands 6 km from Hjärtum Church, west of the Göta River in Lilla Edet Municipality. The grounds are reached by local roads; the municipality kept most of the park and garden when it sold the buildings in 1984. The main building is used for preschool activities, rented flats and conferences, so visitors should expect a working site rather than an open museum.

The estate was once Bohuslän's largest landholding, stretching from Hisingen in the south to the Norwegian border in the north. In 1913–1916 the paper mill that owned it parcelled the land into smaller farms sold to around twenty smallholders, ending the estate's size.