Powerscourt Estate (Irish: Eastát Chúirt an Phaoraigh), located near Enniskerry, County Wicklow, Ireland, is a large country estate which is noted for its house and landscaped gardens, today occupying 19 hectares (47 acres). The house, originally a 13th century castle, was extensively altered during the 18th century by German architect Richard Cassels, starting in 1731 and finishing in 1741. A fire in 1974 left the house lying as a shell until it was renovated in 1996.
Today the estate is owned and run by the Slazenger family. It is a popular tourist attraction, and includes a golf course, an Avoca Handweavers restaurant, and a Ritz-Carlton hotel.