Wakashio is a ship name, which may refer to:
- Japanese submarine Wakashio
- JDS Wakashio (SS-522) (1961–1979), a Hayashio-class submarine of the Japan Maritime Self-Defense Force
- JS Wakashio (1993–2013), a Harushio-class submarine of the Japan Maritime Self-Defense Force
- MV Wakashio (2007–2020; Japanese: わかしお), a Japanese capesize bulk carrier that ran aground and sank, causing an oil spill
This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.