Granfalloon was a science fiction fanzine published by Linda Bushyager and Ron Bushyagan.
The first issue was published in 1966 in Pittsburg, Pennsylvania, U.S.A.. Twenty issues of Grandfalloon were released, the last one in July 1976.
Writers include Piers Anthony, Jesus Cummings, Don D'Ammassa, D. Dinucci, Richard Delap, Arnie Katz, Sandra Miesel, Ron Miller, Robert Silverberg (Spaceship), Jeff Smith, and Darrell Schweitzer.
Artists include Alicia Austin, Bill Bowers, Grant Canfield, Richard Delap, Steve Fabian, Connie Reich Faddis, Dick Flinchbaugh, George Foster, Mike Gilbert, Alexis Gilliland, Howard Green, C. Lee Healy, Terry Jeeves, Eddie Jones, Tim Kirk, Sandra Miesel, Ron Miller, Pauline Palmer, Andy Porter, Terry Romine, Bill Rotsler, and Bernie Zuber.
Granfalloon won the Hugo Award for 'Best Fanzine' in 1972.
Linda Bushyagan also published the fanzine Karadss in the 1970s.