FOSR

AcronymDefinition
FOSRFriends of the Shenandoah River (Winchester, VA)
FOSRFirst Opinions, Second Reactions (Purdue University Press; West Lafayette, IN)
FOSRFlexible Optical Solar Reflector
FOSRFront of Store Recycling (UK)
FOSRFriends of the Shiawassee River (Owosso, MI)
FOSRFriends of the Scioto River (Ohio)
FOSRFriends of Soviet Russia (est. 1921)