Ōyodo may refer to:
- Ōyodo, Nara - town in Japan
- Ōyodo River - a river in Kagoshima and Miyazaki prefectures, Japan
- Japanese cruiser Ōyodo - World War II cruiser
- JDS Ōyodo, an Abukuma-class destroyer escort of the Japanese Maritime Self-Defense Force<!-- Note: participating in disaster relief after the 2011 Tōhoku earthquake and tsunami; see Seawaves, "Warships Supporting Earthquake in Japan" -->
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