9 attacks recorded (2 fatal)
| Date | Country | Region | Location | Fatal? | |
|---|---|---|---|---|---|
| Jan 7th 1931 | Australia | Queensland | Yeppoon, near Ross Creek | N | |
| Jan 14th 1931 | Australia | Torres Strait | N | ||
| Jan 24th 1931 | Australia | Torres Strait | Near Thursday Island | N | |
| Feb 10th 1931 | Australia | New South Wales | Maroubra Beach | N | |
| Mar 6th 1931 | Australia | South Australia | Encounter Bay | N | |
| Mar 22nd 1931 | Australia | Queensland | Ross River, Townsville | Y | |
| May 2nd 1931 | Australia | New South Wales | Kempsey | N | |
| Aug 1st 1931 | Australia | Queensland | Port Douglas | Y | |
| Nov 26th 1931 | Australia | Torres Strait | Barrier Reef near Innisfail | N |