Huntingtower Castle, once known as Ruthven Castle or the Place of Ruthven, is located near the village of Huntingtower beside the A85 and near the A9, about 5 km NW of the centre of Perth, Perth and Kinross, in central Scotland, on the main road to Crieff. This castle is the subject for several local ghostlore stories.

John Ruthven, 3rd Earl of Gowrie, was a Scottish nobleman who died in mysterious circumstances, referred to as the "Gowrie Conspiracy", in which he and/or his brother Alexander were attempting to kill or kidnap King James VI of Scotland for unknown purposes. The king's retinue killed both brothers during the attack, and the king survived.