| Clayey High Lime Till Plains |
| Darby Plains |
| Erie Gorges |
| Erie/Ontario Lake Plain |
| Knobs-Lower Scioto Dissected Plateau |
| Loamy High Lime Till Plains |
| Low Lime Drift Plain |
| Mad River Interlobate Area |
| Marblehead Drift/Limestone Plain |
| Maumee Lake Plain |
| Monongahela Transition Zone |
| Mosquito Creek/Pymatuning Lowlands |
| Oak Openings |
| Ohio/Kentucky Carboniferous Plateau |
| Outer Bluegrass |
| Paulding Plains |
| Permian Hills |
| Pittsburgh Low Plateau |
| Pre-Wisconsinan Drift Plains |
| Summit Interlobate Area |
| Unglaciated Upper Muskingum Basin |
| Whitewater Interlobate Area |
| Amish Country Byway |
| Appalachian Byway |
| Big Darby Plains Scenic Byway |
| Drovers' Trail Scenic Byway |
| Granville Scenic Byway |
| Heritage Corridors of Bath |
| Historic National Road |
| Hocking Hills Scenic Byway |
| Jefferson Township |
| Johnny Appleseed Historic Byway |
| Lake Erie Coastal Ohio Trail |
| Land of The Cross-Tipped Churches |
| Lincoln Highway Historic Byway |
| Lower Valley Pike |
| Maumee Valley Scenic Byway |
| Miami and Erie Canal |
| Neil Armstrong Scenic Byway |
| North Ridge Scenic Byway |
| Ohio & Erie Canalway |
| Ohio River Scenic Byway |
| Old Mill Stream Scenic Byway |
| Olentangy Heritage Corridor |
| Quaker Heritage Scenic Byway |
| Scioto Heritage Trail |
| Tappan-Moravian Trail |
| Wally Road Scenic Byway |
| Welsh Scenic Byway |