| Navy | The Soviet Navy |
| Type | Submarine |
| Class | ShCh (Scuka) |
| Pennant | |
| Mod | 3rd group (Type V-modified) |
| Built by | Baltiyskiy Zavod (Leningrad, U.S.S.R.) / Yard 189 and 61 Kommunara (Nikolajev, U.S.S.R.) / Yard 200 |
| Ordered | |
| Laid down | 10 Mar 1933 |
| Launched | 29 May 1934 |
| Commissioned | 4 Sep 1935 |
| Lost | 26 Aug 1943 |
| Loss position | 45° 12'N, 32° 47'E |
| History | Black Sea fleet. Sunk about 25 nautical miles west of Yevpatoriya, Crimea in position 45º12'N, 32º47'E by torpedo of ultra-small Italian submarine CB 4. All hands lost. |
We don't have any commands listed for USSR ShCh-203
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