| Abbreviation | Definition |
|---|---|
| OJR | Owen J. Roberts School District |
| OKES | Old Kings Elementary School |
| OKUL | School |
| OLASS | Our Lady of Apostles Secondary School |
| OLCMS | Our Lady of Carmelite Montessori School |
| OLMS | Orchard Lake Middle School |
| OLPC | One Laptopschool Per Child |
| OLSD | Olentangy Local School District |
| OLSD | Olentangy Local School District's |
| OLSM | Orchard Lake School of Music |
| OLV | Our Lady of Victory Elementary School |
| OMCS | Odessa Montour Central Schools |
| OMD | Ohio-Meadville District |
| OMES | Oak Meadow Elementary School |
| OMES | Oak Mountain Elementary School |
| OMES | Old Mill Elementary School |
| OMES | Olentangy Meadows Elementary School |
| OMHS | Oak Mountain High School |
| OMHS | Oakland Mills High School |
| OMHS | Old Mill High School |