Knappogue Castle (Irish: Caisleán na Cnapóige[1]) is a tower house, built in 1467 and expanded in the mid-19th century, located in the parish of Quin, County Clare, Ireland.

Eventually, Francis MacNamara, High Sheriff of Clare in 1789, sold the castle to the Scott family of Cahircon in 1800; the latter carried out major restoration and extension work.

They continued the restoration work of the Scotts, adding a drawing-room, the long room and a west wing, including the clock tower and the gateway.

[1] The castle and lands were then purchased in 1966 by Mark Edwin Andrews, former Assistant Secretary of the United States Navy, from Houston, Texas.

[1] The Andrews later leased part of the castle to the Irish Government as a cultural and tourist facility for a nominal rent.