Aretusa was the name of at least three ships of the Italian Navy and may refer to:
- Italian cruiser Aretusa, a Partenope-class cruiser launched in 1891 and discarded in 1912.
- Italian torpedo boat Aretusa, a Spica-class torpedo boat launched in 1938 and stricken in 1958.
- Italian survey vessel Aretusa (A 5304), an Ninfe-class research vessel launched in 2000.
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.