Jantina was the name of at least two ships of the Italian Navy and may refer to:
- Italian submarine Jantina (1912), a Medusa-class submarine launched in 1912 and discarded in 1918.
- Italian submarine Jantina (1932), an Argonauta-class submarine launched in 1932 and sunk in 1941.
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.