- Ohio University-Chillicothe
- Ohio University-Eastern
- Ohio University-Ironton
- Ohio University-Lancaster
- Ohio University-Lancaster
- Ohio University-Zanesville
- Ohio University-Zanesville
- Ohio Valley College
- Ohio Valley College
- Ohio Wesleyan University
- Ohlin
- Ohlone College
- ohm
- Ohm
- ohmage
- ohmages
- ohmmeter
- ohms
- OHMS
- Ohm's law
- oho
- -oholic
- -oholic
- -oholics
- Ohrmazd