OESA
| Acronym | Definition |
|---|---|
| OESA | Original Equipment Suppliers Association (est. 1998; Troy, MI) |
| OESA | Ordo Eremitarum Sancti Augustini (Latin; Order of St. Augustine) |
| OESA | Oxford Emergency Safety Authority (Oakland County, Michigan) |
| OESA | Ohio Elite Soccer Academy (est. 2002; West Chester, OH) |
| OESA | Oklahoma Educational Studies Association (University of Oklahoma; Norman, OK) |
| OESA | Oregon Electric Sign Association |