Possibly surviving WW II submarines

BALAO class

SS 323 - Caiman: Transferred to the Turkish Navy in 1972. Fate unknown.

SS 340 - Extemedor: Transferred to the Turkish Navy in 1973. Struck from the Turkish rolls in 1987, Fate unknown.

SS 344 - Cobbler: Transferred to the Turkish Navy in 1973. Fate Unknown.

SS 365 - Hardhead: Transferred to he Greek Navy in 1972. Struck from the Greek rolls in 1993. Fate Unknown.

SS 368 - Jallao: Transferred to the Spanish Navy in 1974. Fate Unknown.

SS 382 - Picuda: Transferred to the Spanish Navy in 1974. Struck from the Spanish rolls in 1977. Fate unknown.

SS 410 - Threadfin: Transferred to the Turkish Navy in 1972. Last known active in 1998. Fate unknown.

TENCH class

SS 417 - Tench: Transferred to the Peruvian Navy in 1976. Fate unknown

SS 425 - Trumpet Fish: Transferred to the Brazilian Navy in 1973. Fate unknown.

SS 478 - Cutlass: Transferred to the Taiwanese Navy in 1971. Fate unknown.

SS 487 - Remora: Transferred to the Greek Navy in 1973. Fate Unknown.

SS 490 - Volador: Transferred to the Italian Navy in 1977. Fate Unknown.

SS 522 - Amberjack: Transferred to the Brazilian Navy in 1973. Fate Unknown.

SS 523 - Grampus: Transferred to the Brazilian Navy in 1972. Fate Unknown.

SS 524 - Pickerel: Transferred to the Italian Navy in 1977. Struck from the Italian rolls in 1981. Fate Unknown.

SS 525 - Grenadier: Transferred to the Venezuelan Navy in 1973. Fate Unknown.