| OACD | Occupational allergic contact dermatitis 
| Others |
| OACD | Office of Academic Career Development
| Others |
| OACD | Office of Acquisitions Contracts Division
| Others |
| OACD | Office of Associate Chancellor for Diversity
| Others |
| OACD | Oklahoma Academy of Cosmetic Dentistry
| Others |
| OACD | Oklahoma Association of Conservation Districts
| Others |
| OACD | Oral Anti Cancer Drug
| Others |
| OACD | Oregon Association of Conservation Districts
| Others |
| OACD | Oriental Apostolic Church of Damcar
| Others |
| OACD | Orthogonal Array Composite Design
| Others |