RFF may refer to:
Organizations Rainforest Foundation Fund, charitable foundation dedicated to preserving the rainforest by preserving indigenous peoples rights Reading for the Future, a series of grassroots groups that encourage literacy using speculative fiction (science fiction, fantasy, etc.) Réseau Ferré de France, company that owned and maintained the French national railway network from 1997 to 2014 Resources for the Future, American nonprofit that researches the environment, energy and natural resources Ricardo Franco Front, a Colombian revolutionary guerrilla group Russian Fencing Federation, the Russian fencing federation
Other Regina Folk Festival, annual music festival in Saskatchewan, Canada Request for feedback, a page concerning Wikipedia article feedback Rescue Firefighting can refer to Aircraft Rescue and Firefighting Radial Forearm Flap, a surgical technique for Phalloplasty