26 attacks recorded (6 fatal)
| Date | Country | Region | Location | Fatal? | |
|---|---|---|---|---|---|
| Jan 1st 1941 | Atlantic Ocean | Y | |||
| Jan 29th 1941 | South Atlantic Ocean | In Convoy OB 274 | Off Sierra Leone | N | |
| Feb 1st 1941 | Jamaica | Trelawney Province | Bogue (near Falmouth) | N | |
| Feb 13th 1941 | Australia | New South Wales | Wollongong | N | |
| Mar 9th 1941 | USA | California | Santa Monica | N | |
| Mar 24th 1941 | South Atlantic Ocean | 750 miles off the African coast | N | ||
| Jun 1st 1941 | Pacific Ocean | Off coast of Ecuador | Between Esmeraldas & Salinas | N | |
| Jun 15th 1941 | USA | New York | 15 miles south of Jones Inlet | N | |
| Jul 1st 1941 | Papua New Guinea | Gaire Village, between Rigo & Port Moresby | N | ||
| Jul 1st 1941 | Iran | Khuzestan Province | Ahvaz, on the Karun River | Y | |
| Jul 1st 1941 | Iran | Khuzestan Province | Ahvaz, on the Karun River | Y | |
| Jul 1st 1941 | Iran | Khuzestan Province | Ahvaz, on the Karun River | N | |
| Jul 1st 1941 | Iran | Khuzestan Province | Ahvaz, on the Karun River | Y | |
| Jul 1st 1941 | Iran | Khuzestan Province | Ahvaz, on the Karun River | Y | |
| Jul 1st 1941 | USA | Hawaii | Nankuli, O'ahu | N | |
| Jul 22nd 1941 | USA | New Jersey | Brielle (Offshore) | N | |
| Aug 1st 1941 | USA | South Carolina | Sullivan's Island at entrance to Charleston Harbor | N | |
| Aug 5th 1941 | Australia | New South Wales | Parramata River | N | |
| Aug 21st 1941 | USA | New York | Montauk | N | |
| Sep 25th 1941 | Caribbean | 125 nm north of Aruba | Y | ||
| Nov 19th 1941 | Australia | Western Australia | Shark Bay | N | |
| Nov 25th 1941 | South Atlantic Ocean | North of Pernambuco, Brazil | N | ||
| Nov 27th 1941 | South Atlantic Ocean | Off Libya | N | ||
| Nov 27th 1941 | South Atlantic Ocean | Off Libya | N | ||
| Dec 3rd 1941 | Australia | Western Australia | Carnarvon | N | |
| Dec 7th 1941 | South Atlantic Ocean | N |