Select School Beginning with "J"
| School | League | County |
|---|---|---|
| Jackson | Southeastern Ohio Athletic League | Jackson |
| Jackson | Federal League | Stark |
| Jackson Center | Shelby County Athletic League | Shelby |
| Jackson-Milton | Inter Tri-County League | Mahoning |
| James A Garfield | Portage Trail Conference | Portage |
| James Ford Rhodes | Cleveland Municipal Schools Senate League | Cuyahoga |
| Jane Addams Business Careers | Cleveland Municipal Schools Senate League | Cuyahoga |
| Jefferson | Metro Buckeye Conference | Montgomery |
| Jefferson | Northwest Conference | Allen |
| Jefferson Area | Northeastern Conference | Ashtabula |
| John Adams | Cleveland Municipal Schools Senate League | Cuyahoga |
| John F Kennedy | Cleveland Municipal Schools Senate League | Cuyahoga |
| John F Kennedy | Steel Valley Conference | Trumbull |
| John Glenn | Muskingum Valley League | Muskingum |
| John Hay Campus | Cleveland Municipal Schools Senate League | Cuyahoga |
| John Hay School of Architecture & Design | Cleveland Municipal SD | Cuyahoga |
| John Hay Science & Medicine | Cleveland Municipal SD | Cuyahoga |
| John Marshall | Cleveland Municipal Schools Senate League | Cuyahoga |
| Johnstown | Mid-Buckeye Conference | Licking |
| Jonathan Alder | Independents - Central, NW, SE | Madison |