Two submarines of the French Navy have borne the name Ouessant:
- French submarine Ouessant (Q180), a Redoutable-class submarine launched in 1936 and scuttled in 1940
- French submarine Ouessant (S623), an Agosta-class submarine launched in 1978 and sold to Malaysia in 2009
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.