| Acronym | Definition |
|---|
| PIOC➣Parallel Input Output Control |
| PIOC➣Price Index of Operating Costs (housing; New York) |
| PIOC➣Petrie Island Outdoors Club (Ottawa, Ontario, Canada) |
| PIOC➣Parallel Input/Output Controller |
| PIOC➣Privilege Illegal Operations Channel (Alcatel) |