Collen Brook Farm, also known as Collenbrook, is a historic home and associated buildings located in Upper Darby Township, Delaware County, Pennsylvania.

The house is a 2+1⁄2-story, vernacular stone residence with a Georgian plan and consisting of three sections.

It was the home of noted educator and political leader George Smith (1804–1882).

[2] It was added to the National Register of Historic Places in 1988.

[1] The 18th-century period farmhouse house is owned by Upper Darby Township, operated by the Upper Darby Historical Society.