Octagonal Schoolhouse (Cowgill's Corner, Delaware)

Octagonal Schoolhouse, also known as the Eight-square School House, is a historic octagonal schoolhouse building located in Cowgill's Corner, Kent County, Delaware. It was opened in 1836, and is a one-room and one-story stuccoed stone building. It has a pyramidal shingled roof with a stepped stone cornice. It remained a public school well into the 20th century, after which it was used as a community meeting house.

It was added to the National Register of Historic Places in 1971.