Three
submarine
A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely op ...
s of the
French Navy have borne the name ''Émeraude'':
* , an launched in 1906 and sold for scrap in 1923
* French submarine Émeraude, an destroyed incomplete on the slip in 1940
* , a launched in 1986
{{DEFAULTSORT:Émeraude, French Ship
French Navy ship names