| Shipwrecks |
- 2 Oct: HMS Curacoa, Lisbon Maru, U-512
- 5 Oct: U-582, U-619, Larry Doheny
- 6 Oct: I-22
- 8 Oct: U-179, John Carter Rose
- 9 Oct: Pennington Court, U-171
- 10 Oct: Komintern, Camden, HMT Orcades
- 11 Oct: Fubuki, Furutaka, L-16
- 12 Oct: USS Duncan, Murakumo, Natsugumo, U-597
- 13 Oct: I-30, Loreto
- 14 Oct: Caribou, Komet, Shch-213
- 15 Oct: Drazki, USS Meredith, U-661
- 16 Oct: Primrose Hill, U-353
- 17 Oct: Empire Chaucer, Oboro
- 20 Oct: U-216
- 21 Oct: Palatia
- 22 Oct: U-412, Winnipeg II
- 23 Oct: City of Johannesburg, Empire Star
- 24 Oct: U-599
- 25 Oct: USS Seminole, Yura
- 26 Oct: Anne Hutchinson, USS Porter, President Coolidge
- 27 Oct: USS Hornet, U-627
- 29 Oct: Abosso
- 30 Oct: U-520, U-559, U-658
- 31 Oct: USS YP-345
- Unknown date: U-116, HMS Unique
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