USS Grayback may refer to:
- Grayback (SS-208), a Tambor-class submarine, commissioned in 1941 and sunk in 1944
- Grayback (SSG-574), a Grayback-class submarine, commissioned in 1958 and struck in 1984
| 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. |