Ninth Street Hill Neighborhood Historic District

Ninth Street Hill Neighborhood Historic District is a national historic district located at Lafayette, Tippecanoe County, Indiana. The district encompasses 88 contributing buildings and 6 contributing structures in a predominantly residential section of Lafayette. It developed between about 1850 and 1946 and includes representative examples of Gothic Revival, Italianate, Queen Anne, Greek Revival, and Second Empire style architecture. Located in the district is the separately listed Judge Cyrus Ball House. Other notable contributing resources include the Samuel Moore House (1891), Moore-Porter-Boswell House (1895), Stanley Coulter House (1890), Edward Bohrer House (1909), Thomas Wood House (c. 1850), Job M. Nash House (1859), and Gordon Graham House (c. 1900).

It was listed on the National Register of Historic Places in 1997.