20 attacks recorded (7 fatal)
| Date | Country | Region | Location | Fatal? | |
|---|---|---|---|---|---|
| Jul 1st 1923 | USA | New Jersey | Ocean City (offshore) | N | |
| Jul 1st 1923 | USA | New Jersey | Sea Bright | N | |
| Jan 14th 1923 | Cuba | Caribbean Sea | 20 miles from Havana | N | |
| Jan 27th 1923 | Australia | Western Australia | In Swan River at Freshwater Bay, Claremont, 5 miles from river mouth | Y | |
| Jan 27th 1923 | Australia | Western Australia | Bunbury | N | |
| Feb 1st 1923 | USA | Puerto Rico | San Juan | N | |
| Mar 18th 1923 | Australia | Queensland | Ross River, Townsville | N | |
| May 22nd 1923 | Australia | Queensland | Great Barrier Reef | Y | |
| May 23rd 1923 | Australia | Western Australia | Southgates, near Geraldton | N | |
| Jun 6th 1923 | Mexico | Veracruz | Outside Vera Cruz Harbor | N | |
| Jun 16th 1923 | Australia | New South Wales | Bellambi Reef | Y | |
| Jul 2nd 1923 | Australia | Queensland | Great Barrier Reef | Y | |
| Aug 8th 1923 | Guyana | Demerara County | Off the Demerara River | N | |
| Oct 16th 1923 | Australia | Torres Strait | Near Thursday Island | N | |
| Oct 17th 1923 | Australia | New South Wales | Black Head, south of Taree | N | |
| Oct 20th 1923 | Australia | New South Wales | Botany Bay, Sydney | N | |
| Nov 2nd 1923 | Australia | New South Wales | Bellinger Head | Y | |
| Nov 23rd 1923 | Australia | Western Australia | Condon, 88 km NE of Port Hedland | Y | |
| Dec 2nd 1923 | Australia | New South Wales | Urunga, Belliger Heads | Y | |
| Dec 12th 1923 | Australia | New South Wales | Murwillumbah, Tweed River | N |