Dynge Castle

Dynge Castle (Swedish: Dynge borgruin), also formerly known as Dyngehus, is a ruined castle in central Bohuslän, Sweden. It was built around 1250 when the area was under Norwegian rule and was in use until the beginning of the 16th century, when it burned down. It is mentioned several times in Norwegian records.

The site was excavated in 1912–13 by Wilhelm Berg, who had also excavated the contemporary and similar Ragnhildsholmen Castle during the 1880s, and Olsborg Castle. Since then, the site has had no closer examination by archaeologists.

The castle was in shape similar to a motte-and-bailey, with a stone keep surrounded by a small moat, standing on top of a cliff overlooking Gullmarsfjorden. The foundations of the central keep's walls remain clearly visible, as does the moat. It is one of few remaining medieval structures in Uddevalla Municipality, alongside Dragsmark Abbey and Bokenäs Old Church.