| Acronym | Sense | Language | Topics |
|---|---|---|---|
| PO | Postorbit | In English | |
| PO | Power On | In English | → Electrical engineering |
| PO | Power Oscillator | In English | → Electrical engineering |
| PO | Project Office | In English | → Management |
| PO | Purchase Order | In English | → 34745 |
| PO | Promotion Ouvrière | In French | → Labour, labour economics |