| Shipwrecks |
- 2 Mar: Kyokusei Maru, Meriwether Lewis
- 3 Mar: Aiyo Maru, Arashio, Doggerbank, Kembu Maru, Oigawa Maru, Shirayuki, Sin-ai Maru, Stag Hound, Taimei Maru, Teiyo Maru
- 4 Mar: Asashio, City of Pretoria, Marietta E, Tokitsukaze, U-87
- 5 Mar: Empire Tower, USS Grampus, Minegumo, Murasame
- 8 Mar: 's Jacob, James B. Stephens, U-156
- 9 Mar: Fort Battle River
- 10 Mar: Nailsea Court, Richard Bland, U-633
- 11 Mar: HMS Harvester, U-432, U-444
- 12 Mar: HMS Lightning, HMS Turbulent, U-130
- 13 Mar: Clan Alpine, Empress of Canada, U-163
- 14 Mar: HMS Thunderbolt
- 15 Mar: USS Triton
- 16 Mar: Benjamin Harrison
- 19 Mar: Lulworth Hill, U-5, U-384
- 21 Mar: K-3, U-163
- 22 Mar: U-524, U-665
- 23 Mar: Delfino, Windsor Castle
- 24 Mar: Bungsberg
- 25 Mar: U-469
- 27 Mar: HMS Dasher, U-169
- 28 Mar: Caterina Costa, Ceuta, Masaya, Suwa Maru
- 29 Mar: U-77
- 30 Mar: SS Empire Bowman, U-416
- Unknown date: Sirène
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