Three submarines of the French Navy have borne the name Émeraude:
- French submarine Émeraude (1906), an Émeraude-class submarine launched in 1906 and sold for scrap in 1923
- French submarine Émeraude, an Émeraude-class submarine destroyed incomplete on the slip in 1940
- French submarine Émeraude (S604), a Rubis-class submarine launched in 1986
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