| Acronym | Definition |
|---|
| SPDO➣SKA (Square Kilometer Array) Project Development Office |
| SPDO➣Sidamo People's Democratic Organization (Ethiopia) |
| SPDO➣SPDIF (Sony-Philips Digital Interface Format) Output (mainboard connector in PC's) |
| SPDO➣Scale Payment Delivery Office (UK Royal Mail) |
| SPDO➣Senior Postal Delivery Officer (Australia Post) |