FoSF
| 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) |