| Acronym | Definition |
|---|
| OCTD➣Orange County Transit District (California) |
| OCTD➣Observation, Conclusion, Temporary Data (telecommunications) |
| OCTD➣Overlap Connective Tissue Disease |
| OCTD➣Occupational Training and Development (various universities) |
| OCTD➣Office of Collaborative Technology Development (Canada) |
| OCTD➣Ontario Cultural Training Database (Ontario, Canada) |