INS Leviathan may refer to one of the following submarines of the Israeli Sea Corps:
- INS Leviathan (1943), the former British T-class submarine HMS Turpin (P354); acquired by the Israeli Sea Corps in 1965; scrapped in 1978
- INS Leviathan (1997), a Dolphin-class submarine; commissioned in November 1999; in active service
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.