| SIDO | Italian Society of Orthodontics 
| Others |
| SIDO | Senior Intelligence Duty Officer
| Others |
| SIDO | Single In Dual Out
| Others |
| SIDO | Single Inductor Dual Output
| Others |
| SIDO | Single Input Dual Output
| Others |
| SIDO | Small Industries Development Organisation
| Others |
| SIDO | Small Industries Development Organization
| Others |
| SIDO | Small Industries Development Organization [Tanzania]
| Others |
| SIDO | Small Industry Development Organisation
| Others |
| SIDO | Società Italiana di Ortodonzia
| Others |
| SIDO | Sports Inclusion Disability Officer
| Others |
| SIDO | State Industries Development Organization
| Others |
| SIDO | State International Development Organizations
| Others |
| SIDO | Super Intelligentes Drogen Opfer
| Others |