The Ohio Federation of Teachers represents more than 20,000 active and retired members in 64 local unions across the state that include public education employees, higher education faculty and support staff, library workers, and social workers. They include:
- Arcadia Teachers Organization, Local 4783
- Arlington Teachers Association, Local 4564
- Athens County Public Libraries United, Local 6640
- Beachwood Federation of Teachers, Local 1468
- Beachwood Union of Support Staff (BUSS), Local 6840
- Belmont College Faculty Association, Local 6571
- Berea Federation of Teachers, Local 1699
- Botkins Federation of Teachers, Local 4484
- Bright Promise Educators United, Local 6608
- Brookfield Federation of Teachers, Local 1728
- Buckeye Local Education Association, Local 4595
- Cincinnati Federation of Teachers Retired, Local 1520-R
- Cincinnati Federation of Teachers/CFOP, Local 1520
- Clear Fork Valley Education Association, Local 4109
- Cleveland Alliance of Charter Teachers and Staff (ACTS), Local 6570
- Cleveland Heights Teachers Union, Local 795
- Cleveland Teachers Union, Local 279
- Columbus College of Art and Design Faculty Alliance, Local 6624
- Cory-Rawson Education Association, Local 4427
- Cory-Rawson Support Staff Union, Local 6356
- Crestview Employees' Association, Local 4989
- Crooksville Federation of Teachers, Local 4988
- Cuyahoga Valley Federation of Teachers, Local 2371
- Delaware County United Library Staff, Local 6643
- Equitas Health Workers United, Local 6609
- Faculty Alliance of Miami, Local 375*
- Federation of Franklin County Children Services Employees, Local 3143
- Genoa Area Education Association, Local 4741
- Georgetown Federation of Teachers, Local 4903
- Grand Valley Education Association, Local 4910
- Grandview Heights Public Library United, Local 6607
- Greenon Federation of Teachers, Local 4370
- Jackson-Milton Educators' Association, Local 4968
- KIPP Columbus Alliance of Charter Teachers and Staff (ACTS), Local 6614
- Liberty-Benton Teachers Association, Local 4943
- Lordstown Teachers Association, Local 3789
- Mahoning County Educational Service Center Employees Association, Local 4726
- Miami Valley Career Technology Center Employees' Association, Local 4575
- Mineral Ridge Education Association, Local 6438
- New Knoxville Education Association, Local 4782
- New Lebanon Federation of Teachers, Local 4468
- New Lexington Federation of Teachers, Local 4186
- Newton Falls Classroom Teachers Association, Local 4864
- Northeast Ohio Retired, Local 279-R
- Northmor Teachers Association, Local 4132
- Ontario Federation of Teachers, Local 1703
- Oregon City Federation of Teachers, Local 1080
- Owens Faculty Association, Local 4670
- Owens Support Staff Union, Local 6325
- Pickerington Public Library United Staff, Local 6623
- Port Clinton Federation of Teachers, Local 3217
- Strasburg Education Association, Local 4733
- Terra Faculty Association, Local 4719
- Toledo Federation of Teachers Retired, Local 250-R
- Toledo Federation of Teachers, Local 250
- Triad Education Association, Local 4970
- United Faculty/Central Ohio Technical College, Local 4729
- Upper Arlington Public Library United Staff, Local 6635
- Van Wert Federation of Teachers, Local 4088
- Vanguard-Sentinel Education Association, Local 6078
- Vanlue Teachers Association, Local 4690
- Vantage Teachers Organization, Local 4321
- Warren County JVS Teachers Association, Local 4474
- Worthington Public Libraries United, Local 6606
* Affiliated with OFT and the Ohio Conference of AAUP