Parke's Castle, 17th-century manor house in County Leitrim, Ireland

Parke's Castle is a three-story manor house with defensive walls surrounding a central courtyard, situated on the shores of Lough Gill in County Leitrim. The stone structure displays typical 17th century architecture with thick walls, narrow windows, and a fortified layout designed for both residence and protection.

Robert Parke acquired the land in 1628 and built the castle using stone from an earlier O'Rourke tower house that previously stood on the site. The construction marked the shift of local power from Gaelic nobility to English settlers during Ireland's plantation period.

The castle represents the transition period between Gaelic nobility and English settlers during the plantation era in 17th century Ireland.

The castle operates as a seasonal visitor center from March through September with guided tours available to explore the interior rooms and layouts. Visitors can walk through the courtyards and enjoy views of the lake from the upper levels.

Excavations in 1972–1973 uncovered the base of the O'Rourke tower house beneath the courtyard cobbles, and these foundations are now on view. The Spanish Armada officer Francisco de Cuéllar stayed in that tower as a guest of Brian O'Rourke after his ship was wrecked off Ireland.