SMSO
| Acronym | Definition |
|---|---|
| SMSO | Smart Metering System Operator (software) |
| SMSO | Senior Maintenance Staff Officer |
| SMSO | Stowarzyszenie Mlodego Spoleczenstwa Obywatelskiego |
| SMSO | Saudi Medical Site Online |
| SMSO | Sekolah Menengah Sayyidina Othman (secondary school, Tutong, Brunei) |
| SMSO | Sequential Multipliers with Serial Output |
| SMSO | Security Management System Online (Wateringen, Netherlands) |
| SMSO | State Military Support Office |