A number of ships of the French Navy have borne the name Tonnant ("Thundering"). Among them:
- French ship Tonnant (1681), a 76-gun ship of the line
- French ship Tonnant (1693), a 90-gun ship of the line
- French ship Tonnant (1740), an 80-gun ship of the line
- French ship Tonnant (1789) an 80-gun ship of the line, lead ship of her class
- French ship Tonnant (1808),
- French ship Louis-XIV (1854), an Océan-class ship of the line was laid as Tonnant
- French ironclad Tonnant, a coastal defence ship that served between 1885 and 1902.
- French submarine Le Tonnant (Q172), a Redoutable-class submarine during the Second World War (1934–1942)
- French submarine Tonnant (S614), a Redoutable-class ballistic missile submarine (1977–1999)
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.