Newtown Castle is a 16th-century tower house, located close to the village of Ballyvaughan within the Burren area of County Clare, Ireland.

The Ordnance Survey of 1839 names Charles O'Loghlen as inhabitant of the castle and describes the tower as being in good repair.

[3] The Buckingham estates in County Clare, around 7,000 acres (2,800 ha) in the Barony of Burren were purchased for 30,000 pounds by one Richard Samuel Guinness, acting as agent for Colonel Henry White.

Signs of the presence of a significant population (animal and shellfish remains and a large cobbled space) were also discovered in the area.

[6]: 92 Newtown Castle was restored in 1993–94 for use by the newly established Burren College of Art, which was opened by president Mary Robinson in 1994.

The tower was restored for use as the Burren College of Art with a conical oak roof and opened in July 1994 by Mary Robinson.