Walnut Hills is a neighborhood in Dayton, Ohio, United States.
Walnut Hills borders the neighborhoods of Twin Towers and Linden Heights to the north, Hearthstone to the east, and Belmont to the south.
Woodland Cemetery, the highest point in Dayton, is located in Walnut Hills.
During the Great Dayton Flood of 1913, the area remained mostly dry, a factor that contributed to its larger population today.
Workers from NCR, Delco and Frigidaire made extensive use of the streetcar network during its peak.