At least four ships of the Argentine Navy have been named ARA San Juan:

, an launched in 1911 but requisitioned before completion by France in 1914 and renamed Temeraire , a survey vessel commissioned in 1928; she was renamed Comodoro Rivadavia in 1937 and Madryn in 1942; sold in 1967. , a launched in 1937 and scrapped in 1973. , a launched in 1983 and lost in 2017.

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