OTEC
| Acronym | Definition |
|---|---|
| OTEC | Ocean Thermal Energy Conversion |
| OTEC | Ohio Transportation Engineering Conference (Ohio) |
| OTEC | Ontario Tourism Education Corporation (Ontario, Canada) |
| OTEC | Oregon Trail Electric Cooperative (Baker City, OR) |
| OTEC | Orchid Technologies Engineering & Consulting, Inc. |
| OTEC | Operational Test & Evaluation Center |
| OTEC | Over the Edge Customs (car & truck club) |