Marsh Hall, historically known as the Othniel C. Marsh House, is a historic house on Prospect Hill in New Haven, Connecticut.
 The property, which includes the house and a 6.8 acres (2.8 ha) grounds now known as Marsh Botanical Garden, was declared a National Historic Landmark in 1965.
It was built in 1878 as the home of Othniel Marsh (1831–99), a leading 19th-century paleontologist, who occupied it until his death.
 The house is now owned by Yale University, and the building is occupied by the Yale School of Forestry and Environmental Studies.
Marsh Hall, historically known as the Othniel C. Marsh House, is a historic house on Prospect Hill in New Haven, Connecticut.  The property, which includes the house and a 6.8 acres (2.8 ha) grounds now known as Marsh Botanical Garden, was declared a National Historic Landmark in 1965. It was built in 1878 as the home of Othniel Marsh (1831–99), a leading 19th-century paleontologist, who occupied it until his death.  The house is now owned by Yale University, and the building is occupied by the Yale School of Forestry and Environmental Studies.
Marsh Hall (Yale University)