Science fiction fandom or SF fandom is a community or fandom of people interested in science fiction in contact with one another based upon that interest. SF fandom has a life of its own, but not much in the way of formal organization.
Banquet at the 14th World Science Fiction Convention in New York City in 1956
Audience waiting for the Hugo Award ceremony at the 75th World Science Fiction Convention in Helsinki, Finland in 2017
The 501st legion guards an Obi-Wan bust at Star Wars Celebration IV.
A fandom is a subculture composed of fans characterized by a feeling of camaraderie with others who share a common interest. Fans typically are interested in even minor details of the objects of their fandom and spend a significant portion of their time and energy involved with their interest, often as a part of a social network with particular practices, differentiating fandom-affiliated people from those with only a casual interest.
Cosplayer dressed as Katniss Everdeen during the Montreal Comiccon, July 2015
Banquet at the 14th World Science Fiction Convention in New York City in 1956
Fan art for the Sherlock TV series on an English telephone booth
An example of the furry fandom, a cartoon of an "anthro vixen"
