The development comes just weeks after Japan's leading atomic bomb survivors' organization, Nihon Hidankyo, was awarded the 2024 Nobel Peace Prize.
"Trump may believe that the world is stable because of nuclear weapons," said Toshiyuki Mimaki, 82, who leads the Hiroshima Prefectural Confederation of A-bomb Sufferers Organizations.
"It's difficult to predict in which direction the United States will move, but as hibakusha, we just want him to aim for a world without nuclear weapons."
The election outcome has drawn varied responses from other Japanese stakeholders, including families of those abducted by North Korea, who expressed hope for progress on negotiations with Pyongyang given Trump's previous diplomatic engagement with North Korean leader Kim Jong-un.