"Hibakusha is receiving the Peace Prize for its efforts to achieve a world free of nuclear weapons and for demonstrating through witness testimony that nuclear weapons must never be used again," the Norwegian Nobel Committee said on Friday.
Committee chair Joergen Watne Frydnes said the award was made as the "taboo against the use of nuclear weapon is under pressure".
He said the Nobel Committee "wishes to honour all survivors who, despite physical suffering and painful memories, have chosen to use their costly experience to cultivate hope and engagement for peace".
Hidankyo chair Toshiyuki Mimaki, who was standing by at the Hiroshima City Hall for the announcement, cheered and teared up when he received the news.
Nihon Hidankyo chair Toshiyuki Mimaki rejoiced when he heard the news of his group's Nobel Prize. (AP PHOTO)
"Is it really true? Unbelievable!" Mimaki screamed.
Efforts to eradicate nuclear weapons have been honoured in the past by the Nobel committee.
The International Campaign to Abolish Nuclear Weapons won the peace prize in 2017, and in 1995 Joseph Rotblat and the Pugwash Conferences on Science and World Affairs won for "their efforts to diminish the part played by nuclear arms in international politics and, in the longer run, to eliminate such arms".
The 2024 prize was awarded against a backdrop of devastating conflicts raging in the world, notably in the Middle East, Ukraine and Sudan.
"It is very clear that threats of using nuclear weapons are putting pressure on the important international norm, the taboo of using nuclear weapons," Watne Frydnes said in response to a question on whether the rhetoric from Russia surrounding nuclear weapons in its invasion of Ukraine had influenced this year's decision.
"And therefore it is alarming to see how threats of use is also damaging this norm.
"To uphold an international strong taboo against the use is crucial for all of humanity."
A 1945 photo depicts the devastation after the atom bomb was dropped in Hiroshima, Japan. (AP PHOTO)
Alfred Nobel stated in his will that the peace prize should be awarded for "the most or the best work for fraternity between nations, for the abolition or reduction of standing armies and for the holding and promotion of peace congresses".
The 2023 prize went to jailed Iranian activist Narges Mohammadi for her advocacy of women's rights and democracy, and against the death penalty.
The Nobel Committee said it also was a recognition of "the hundreds of thousands of people" who demonstrated against "Iran's theocratic regime's policies of discrimination and oppression targeting women".
In a year of conflict, there had been some speculation before the announcement that the Norwegian Nobel Committee that decides on the winner would opt not to award a prize at all this year.
The Nobel prizes carry a cash award of 11 million Swedish kronor ($A1.6 million).
Unlike the other Nobel prizes that are selected and announced in Stockholm, founder Alfred Nobel decreed the peace prize be decided and awarded in Oslo by the five-member Norwegian Nobel Committee.
The Nobel season ends Monday with the announcement of the winner of the economics prize, formally known as the Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel.
with Reuters
