Duckett's Grove (Irish: Garrán Duckett) is a ruined 19th-century great house and former estate in County Carlow, Ireland. Belonging to the Duckett family, the house was formerly the focal point of a 12,000-acre (49 km2) estate, and dominated the local landscape of the area for more than two centuries. The interior of the house was destroyed by a major fire in the 1930s and is now inaccessible. The surrounding gardens, including two inter-connecting walled gardens, are now managed by Carlow County Council and open as a public park.

County Carlow is a county located in the Southern Region of Ireland, within the province of Leinster. Carlow is the second smallest and the third least populous of Ireland's 32 traditional counties. Carlow County Council is the governing local authority.