SIDO
| Acronym | Definition |
|---|---|
| SIDO | Societa Italiana di Ortodonzia (Italian: Italian Orthodontics Society; Milan, Italy) |
| SIDO | Small Industries Development Organization (Zambia) |
| SIDO | State International Development Organizations (Washington, DC) |
| SIDO | Senior Intelligence Duty Officer (AOC) |
| SIDO | Single Item Dealer Order |