| Acronym | Definition |
|---|
| PETA | People for the Ethical Treatment of Animals |
| PETA | People Eating Tasty Animals (parody web site) |
| PETA | Primary English Teaching Association (Australia) |
| PETA | Pembela Tanah Air (Defenders of the Fatherland, Indonesian volunteer army) |
| PETA | Pentaerythritol Triacrylate (chemistry) |
| PETA | Petrographical Analysis Report (energy exploration) |
| PETA | People Euthanizing Trusting Animals |
| PETA | Please Explain This Acronym |
| PETA | Primary Elementary Teachers' Association |
| PETA | Polling Every Time Approach |
| PETA | Power-Efficient Target Array (computer algorithm) |