Japan has chosen the regional commercial hub, destroyed by the world's first atomic bombing by American forces 70 years ago, as the location of the meeting, which brings together top diplomats from powerful nations, many of which possess nuclear arms.
"We think it would be a good opportunity for them to visit the site (of the bombing) after the meeting, and see for themselves what happened," said Chief Cabinet Secretary Yoshihide Suga.
In the weeks leading up to the summit, a number of ministerial talks will take place in various cities across Japan, including the Hiroshima session for foreign ministers.
The industrial city was flattened by the United States on August 6, 1945, when a nuclear weapon detonated there, killing some 140,000 people.
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The US dropped another atomic bomb in Nagasaki days later, killing 74,000 and dealing the final blow to Imperial Japan, which announced its surrender to the Allied Powers on August 15, 1945.
The site of the Hiroshima bombing has been turned into a peace memorial, with a museum vividly recounting the horror and destruction of the nuclear attack.
The highest sitting US official ever to visit modern Hiroshima is Nancy Pelosi who, in 2008 as a House speaker, participated in a G8 meeting of legislative chiefs.
Japanese Foreign Minister Fumio Kishida, who is from Hiroshima, called his home city "a symbol of peace and hope".
"We believe it is a host city befitting as a location to pronounce our hope for world peace, prosperity and hope for the future," Kishida said.