Socialisme ou Barbarie
| Socialism or Barbarism Socialisme ou Barbarie | |
|---|---|
| Copies of the journal Socialisme ou Barbarie | |
| Abbreviation | SouB | 
| Leader | Cornelius Castoriadis | 
| Founders | Cornelius Castoriadis Claude Lefort Jean Laplanche | 
| Founded | 1948 | 
| Dissolved | June 1967 | 
| Split from | Internationalist Communist Party | 
| Newspaper | Socialisme ou Barbarie | 
| Membership (1960) | 100 | 
| Ideology | Libertarian socialism Council communism | 
| Political position | Far-left | 
| British sister organisation | Solidarity | 
| Part of a series on | 
| Left communism | 
|---|
Socialisme ou Barbarie (SouB; "Socialism or Barbarism") was a French-based radical libertarian socialist group of the post-World War II period whose name comes from a phrase which was misattributed to Friedrich Engels by Rosa Luxemburg in the Junius Pamphlet, but which probably was most likely first used by Karl Kautsky. It existed from 1948 until 1967. The animating personality was Cornelius Castoriadis, also known as Pierre Chaulieu or Paul Cardan. Socialisme ou Barbarie (S ou B) is also the name of the group's journal.