List of people that, at different times, have been members of the Situationist International:
Algerian Section (2)
- Hadj Mohamed Dahou
- Abdelhafid Khatib
American Section (4)
- Robert Chasse
- Bruce Elwell
- Jan Horelick
- Tony Verlaan
Belgian Section (6)
- Walter Korun
- Attila Kotányi
- Rudi Renson
- Jan Strijbosch
- Raoul Vaneigem
- Maurice Wyckaert
Dutch Section (5)
- Anton Alberts
- Armando
- Constant
- Jacqueline de Jong
- Har Oudejans
English Section (5)
- Timothy (T. J.) Clark
- Chris Gray (1942–2009)
- Donald Nicholson-Smith
- Charles Radcliffe
- Ralph Rumney (1934–2002)
French Section (15)
- Francois de Beaulieu
- Michele Bernstein
- Patrick Cheval
- Alain Chevalier
- Guy Debord (1931 - 1994)
- Edith Frey
- Theo Frey
- Jean Garnault
- Anton Hartstein
- Herbert Holl
- Mustapha Khayati
- Ndjangani Lungela
- Rene Riesel
- Christian Sebastiani
- Patrick Straram
- René Viénet
German Section (11)
The SPUR Group
- Erwin Eisch
- Heinz Hofl
- Renee Nele
- Gretel Stadler
Excluded in February 1962
- Lothar Fischer
- Dieter Kunzelmann
- Heimrad Prem
- Helmut Sturm
- Hans-Peter Zimmer
Not excluded in February 1962
- Uwe Lausen
Non Spur members
- Hans Platschek
Italian Section (10)
- Giors Melanotte
- Walter Olmo
- Claudio Pavan
- Giuseppe Pinot-Gallizio
- Eduardo Rothe
- Paolo Salvadori
- Gianfranco Sanguinetti
- Piero Simondo
- Elena Verrone
- Glauco Wuerich
- Ansgar Elde
- Asger Jorn (1914–1973)
- Stefan Larsson
- Peter Laugesen
- Katja Lindell
- Jeppesen Victor Martin
- Jørgen Nash
- Hardy Strid
No Section (4)
- Ivan Chtcheglov
- Andre Frankin
- Jacques Ovadia
- Alexander Trocchi