| Shipwrecks | 
- 1 Jan: Nagoya Maru
 
- 2 Jan: Albert Gallatin
 
- 3 Jan: USS Turner
 
- 6 Jan: USS St. Augustine
 
- 8 Jan: U-426, U-757
 
- 9 Jan: U-81
 
- 10 Jan: Daniel Webster
 
- 11 Jan: I-11, Kuma
 
- 13 Jan: U-231
 
- 14 Jan: Ha-50, Sazanami
 
- 16 Jan: I-181, USS Macaw, U-544
 
- 17 Jan: Ha-51
 
- 18 Jan: Yoshida Maru
 
- 19 Jan: U-641
 
- 20 Jan: U-263
 
- 22 Jan: USS Portent, Ro-37
 
- 23 Jan: HMS Janus
 
- 24 Jan: Magane Maru, St David
 
- 25 Jan: Suzukaze
 
- 26 Jan LST-411, LST-422
 
- 28 Jan: Ha-49, Sperrbrecher 137, U-271, U-571
 
- 29 Jan: Samuel Huntington, HMS Spartan, U-364
 
- 30 Jan: Cha-14, Cha-19, Cha-28, HMS Hardy, Tama Maru No. 3, U-314
 
- 31 Jan: U-592, Yasukuni Maru
 
- Unknown date: USS Scorpion, U-305, U-377
  
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