| Acronym | Definition |
|---|
| FoSF➣Friends of Sherwood Forest (UK) |
| FoSF➣Friends of Sinn Féin (Canada) |
| FoSF➣Friends of Shoreham Fort (UK) |
| FoSF➣Friends of St. Francis (Christian organization) |
| FoSF➣Freie Oeffentliche Schule Freiburg (German: Free Public School in Freiburg; Freiburg, Switzerland) |
| FoSF➣Flag Officer Surface Flotilla |
| FoSF➣Friends of Sholan Farms, Inc. (est. 2001; Leominster, MA) |