Fort Nonsense (Annapolis, Maryland)

Fort Nonsense is a historic earthen fortification at Annapolis, Maryland. It consists of two arcs of embankments and ditches that date at least to the early 19th century. It is located near 38.9874°N, -76.4698°W on a hilltop which has remained undisturbed by the surrounding Annapolis Naval Ship Research and Development Center. It is the last vestige of Annapolis Harbor fortifications.

It was listed on the National Register of Historic Places in 1984.