ARA San Luis

Several ships of the Argentine Navy have been named ARA San Luis (or San Luis before the 1860s):


 * San Luis, a felucca that served in the second Argentine squadron during the Independence War
 * ARA San Luis, a San Luis-class destroyer originally ordered by Argentina that was purchased by Greece (as Aetos) in 1912 before delivery
 * ARA San Luis, a Buenos Aires-class destroyer, in service with Argentina 1938 to 1971
 * ARA San Luis, a Type 209 submarine in service with Argentina from 1974 to 1997