Derryquin Castle was an 18th-century stone-built country house, now demolished, in the Parknasilla estate in Sneem, County Kerry in Ireland.
Designed by local architect James Franklin Fuller, the house comprised a three-storey main block with a four-storey octagonal tower rising through the centre and a two-storey, partly curved, wing.
[citation needed] Sir (Francis) Christopher Bland has Derryquin as one of the backgrounds for his novel "Ashes in the Wind".
[citation needed] In 1891 James Franklin Bland sold the castle to the Warden family, who lived there until 1922, when it was burnt down by the Irish Republican Army, one of many historic houses in Ireland to suffer the same fate.
The site of the building now lies within the resort grounds of the Parknasilla Hotel, which the Bland family also built in the 1890s.