FOSF

AcronymDefinition
FoSFFriends of Sinn Féin (Canada)
FOSFFriends of St. Francis (Christian organization)
FOSFFreie Oeffentliche Schule Freiburg (German: Free Public School in Freiburg; Freiburg, Switzerland)
FOSFFlag Officer Surface Flotilla
FOSFFriends of Sholan Farms, Inc. (est. 2001; Leominster, MA)
FoSFFriends of Sherwood Forest (UK)