| Acronym | Definition |
|---|
| OECA➣Office of Enforcement and Compliance Assurance |
| OECA➣Organizaciones Económicas Campesinas (Campesino Economic Organizations) |
| OECA➣Ontario Educational Communications Authority (Canada) |
| OECA➣Ohio and Erie Canalway (Cleveland, OH) |
| OECA➣Optoelectronic Components and Applications (Dahlwitz-Hoppegarten, Germany) |
| OECA➣Orthogonal Electrode Catheter Array (cardiovascular medicine) |