Octubre Socialista was a political party in Jaén, Spain. It was formed in 1986 by Alberto Fernández Malo, who broke away from the Spanish Socialist Workers' Party (PSOE). Fernández had previous been a member of the Socialist Left, a leftist tendency inside PSOE. The party took part in founding the United Left (IU) in 1986.
In the 1993 parliamentary election Octubre Socialista got 540 votes (0.14% of the votes in the province). In the municipality of Torreperogil it obtained 211 votes (4.07%). In the city of Jaén, it obtained 125 votes (0.2%).
Read more about Octubre Socialista: 1991 Municipal Election, 1995 Municipal Election