Direct action group UK Uncut is to stage a series of street parties "with a twist" in the run-up to the Queen's Jubilee celebrations and the Olympics, including plans to block roads.
Events will be held in towns and cities across the country with the aim of protesting against the Government's spending cuts and the closure of local public services.
UK Uncut said it wanted to highlight cuts to public services which were being set up the last time the Olympics were held in London, in 1948.
Rachel Woodhead, a supporter of UK Uncut, said: "We know we are paying the price for the banks' greed and recklessness. We know that the Government lets big business dodge tax and slashes tax rates for the wealthy while choosing to punish us.
"We know that multinational companies rake in billions in profits but contribute next to nothing, despite sitting on massive surpluses of cash.
"We can let the Government and corporations control our future. Or we can fight, taking our future out of the hands of a tiny group of millionaires to instead create a future which benefits everyone."