USS Hydra may refer to:
- USS Hydra (1869), was the light draft monitor Tunxis, renamed Hydra 15 June 1869, while laid up out of commission at League Island, Pennsylvania
- USS Hydra (AK-82), was a cargo ship launched in 1943 and decommissioned 19 November 1943 and transferred to the US Army.
|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.|
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