Avondale House, Georgian house in County Wicklow, Ireland

Avondale House is a three-story manor with Georgian architectural features set in County Wicklow. Its rooms display detailed plasterwork, tall sash windows overlooking woodland, and original furnishings spanning different periods.

The house was constructed in 1777 following designs by architect James Wyatt for Samuel Hayes. It later became the birthplace of Charles Stewart Parnell, an influential Irish politician of the 19th century.

The American Room commemorates Parnell's maternal grandfather, Admiral Charles Stewart, who commanded the USS Constitution during the War of 1812. The house also holds furniture original to the Parnell family, and its exterior appears in a painting reproduced in R. Barry O'Brien's 1898 biography of Parnell.

Guided tours cover both the historic house and the former forestry school. The grounds hold walking trails of one to five hours, a tree canopy walk, a walled garden, picnic areas and a trackless forest train; the house stands about 1.5 km from Rathdrum.

The American Room commemorates Parnell's grandfather Admiral Charles Stewart, who commanded the USS Constitution during the War of 1812; the ship is now moored in Boston Harbor. The estate's sawmill ruins and Parnell's well still stand in the grounds.