| lexicalization | eng: Science fiction organizations |
| subclass of | e/Fantastic |
| has instance | e/BASFA |
| has instance | e/Baltimore Science Fiction Society |
| has instance | e/British Fantasy Society |
| has instance | e/Cajun Sushi Hamsters |
| has instance | e/Dallas Future Society |
| has instance | e/Darkstar (Science Fiction Club) |
| has instance | e/Down Under Fan Fund |
| has instance | e/Harvard–Radcliffe Science Fiction Association |
| has instance | e/Hopsfa |
| has instance | e/Infinite Frontiers |
| has instance | e/Los Angeles Science Fantasy Society |
| has instance | e/MCFI |
| has instance | e/MISFITS |
| has instance | e/Marcon (convention) |
| has instance | e/Melbourne Science Fiction Club |
| has instance | e/Midnight Rose |
| has instance | e/National Fantasy Fan Federation |
| has instance | e/Odyssey Writing Workshop |
| has instance | e/Photon Tide |
| has instance | e/Reading for the Future |
| has instance | e/SF Minnesota |
| has instance | e/Science Fiction Forum |
| has instance | e/Science Fiction Foundation |
| has instance | e/Science Fiction and Fantasy Association of New Zealand |
| has instance | e/Silesian Fantasy Club |
| has instance | e/Southern Fandom Confederation |
| has instance | e/Star Trek Welcommittee |
| has instance | e/Stella Nova |
| has instance | e/The Invisible Universe Foundation |
| has instance | e/Trans-Atlantic Fan Fund |
| has instance | e/Trap Door Spiders |
| has instance | e/Turkey City Writer's Workshop |
| has instance | e/fr/Club Presences d'Esprits |
| has instance | e/ja/ハードSF研究所 |
| has instance | e/ja/一の日会 |
| has instance | e/ja/京都大学SF研究会 |
| has instance | e/ja/日本古典SF研究会 |
| has instance | e/ja/日本漫画大会 |
| has instance | e/ja/関東大学SF研連絡会議 |
| has instance | e/sv/Skandinavisk Förening för Science Fiction |