Camp Dennison is a census-designated place (CDP) just outside Indian Hill in southern Symmes Township, Hamilton County, Ohio, United States.

It is named for William Dennison, the 24th Governor of Ohio and U.S. Postmaster General under President Abraham Lincoln.

Camp Dennison is located in the valley of the Little Miami River, 17 miles (27 km) northeast of downtown Cincinnati.

Ohio State Route 126, Glendale Milford Road, runs north-south through the center of the community.

[7] Residents of Camp Dennison have access to Indian Hill Exempted Village School District.