The South African Communist Party (SACP) launched its 2026–2027 Red October campaign on Sunday, 4 October, in Komga in the Eastern Cape, with SACP General Secretary Solly Mapaila addressing the launch.
The Communist Party of India (Marxist) has intervened in the controversy surrounding sexual harassment and manhandling of women journalists by Delhi Police personnel during protests at Jantar Mantar on 3 October.
The Communist Party of Britain (CPB) took part in the 90th anniversary mobilisation marking the Battle of Cable Street in London on Sunday, 4 October, presenting the commemoration as both a tribute to the anti-fascist resistance of 1936 and a call for renewed working-class organisation against racism and fascism.
The Communist Party of the Russian Federation (KPRF) devoted much of its activity on 3–4 October to commemorating the 33rd anniversary of the violent confrontation in Moscow in October 1993, when the conflict between President Boris Yeltsin and the Russian parliament culminated in the shelling of the Supreme Soviet building. Demonstrations were held across Russia and there were detentions at the end of the demonstration in Moscow.
Communist Party of Canada shares sympathies with survivors and the indigenous communities still hurt by the genocidal policies.
The Communist Party of Venezuela (PCV) was part of a mobilisation on 1 October outside the headquarters of Petróleos de Venezuela (PDVSA) in La Campiña, Caracas. The protest brought together oil workers, retired workers, trade-union activists and several left-wing and popular organisations.
The Communist Party of Greece (KKE) has stepped up its mobilisation against the planned visit of US Secretary of State Marco Rubio to Greece on 6–7 October, organising a series of rallies, pickets and meetings across Athens and other parts of the country ahead of his arrival.
The Communist Party of the Workers of Spain (PCTE) joined and called for participation in demonstrations for the right to housing taking place in cities across Spain on 2 and 3 October, amid a broader wave of mobilisation over the country's housing crisis.
The Ä°zmir Provincial Organisation of the Communist Party of Turkey (TKP) held a protest in Ä°zmir following the deaths of five mine workers in Soma, Manisa.
At an extraordinary party conference on 26 September, the New Communist Party of the Netherlands (NCPN) has decided to change its name to the Communist Party of the Netherlands (CPN), stating that the new name reflects both its political identity and its historical connection with the Dutch communist movement.
The Brazilian Communist Party (PCB) has entered the final stretch of the 2026 presidential campaign with Edmilson Costa as its presidential candidate and Cleusa Santos as his running mate. The first round is scheduled for 4 October, with Costa running under ballot number 21.
The Supreme Court overturns the Elections Committee's decision and allows the Joint List, the United List, and Knesset Member Ofer Cassif to run in the elections.
