FJF can refer to:
Toucan, a family of tropical birds, by Catalogue of Life identifier Future Jobs Fund, an initiative of the British government to help unemployed people Free Jazz Four, a Swedish and American jazz quartet that produced the album Blow Horn FJF, an identification code assigned to No. 24 Elementary Flying Training School RAF.
See also Frederick John Freshwater Shaw (1885–1936) or F. J. F. Shaw, a British botanist and mycologist