OSPF
| Acronym | Definition |
|---|---|
| OSPF | Open Shortest Path First |
| OSPF | Open Shortest Path Finder |
| OSPF | Ohio Suicide Prevention Foundation (est. 2005) |
| OSPF | Oklahoma State Poultry Federation |
| OSPF | Osaka Short Play Festival (Japan) |
| OSPF | Office of the Special Project Facilitator (Asian Development Bank) |
| OSPF | Open Space Preservation Fund (Fairfax County, VA) |
| OSPF | Ocular Sun Protective Factor |