USS Harkness may refer to the following ships operated by the United States Navy:
- USS Harkness (AMCU-12), was a survey ship launched in 1942 and decommissioned in 1958
- USNS Harkness (AGS-32), was a survey ship launched in 1968 and transferred to the Maritime Administration in 1994
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.