Iōjima may refer to:
- An island known as Iwo Jima in English. In Japanese, it is officially known as Iōtō, although at one point it was officially also Iōjima
- Iōjima, Tokyo, a former village in Tokyo on the same island
- Iōjima, Kagoshima, one of the three islands that forms the village of Mishima, Kagoshima, Japan; one of the Ōsumi Islands
- Iōjima, Nagasaki, a former town in Nagasaki Prefecture, Japan
See also
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