The Japanese Geographical Survey Institute announced the name change on Monday for the island that was the site of a famous World War II battle between Japanese and U.S. forces in 1945, the Mainichi Daily News reported.
Iwo To is the island's original name given to it by its inhabitants, the Daily News reported.
Iwo To will appear on a map that will go on sale Sept. 1. Both "jima" and "to" mean island in Japanese, the Daily News reported.
Iwo To is one of the Ogasawara islands, which are part of Tokyo.