Spanish submarine ''Isaac Peral'' is the name used by four submarines in the Spanish navy after captain and submarine pioneer Isaac Peral. * was an American-made submarine in commission between 1917 and 1932 * was in commission between 1928 and 1950 * , was a used during World War II; updated to Guppy IIA, and in commission between 1971 and 1987 * is an currently under construction

See also