25 attacks recorded (7 fatal)
| Date | Country | Region | Location | Fatal? | |
|---|---|---|---|---|---|
| Jan 1st 1930 | Mauritius | Two miles from shore in Tamarind Bay | N | ||
| Jan 16th 1930 | South Africa | Western Cape Province | Melkbaai, False Bay | N | |
| Feb 3rd 1930 | Australia | Western Australia | Onslow | N | |
| Feb 15th 1930 | Australia | Victoria | Middle Brighton, Port Phillip | Y | |
| Feb 20th 1930 | Australia | Torres Strait | N | ||
| Mar 7th 1930 | USA | Florida | 70 miles off Tarpon Springs | N | |
| Apr 8th 1930 | South Africa | Eastern Cape Province | Bashee River | N | |
| May 11th 1930 | Costa Rica | Off Porto Limon | N | ||
| May 27th 1930 | USA | Texas | High Island | N | |
| Jun 4th 1930 | Australia | Torres Strait | Near Mabuiag Island | Y | |
| Jul 1st 1930 | South Africa | Eastern Cape Province | North End Beach, Port Elizabeth | Y | |
| Jul 1st 1930 | Turkey | Santo Stefano (Bosphorus) | N | ||
| Jul 1st 1930 | Okinawa | N | |||
| Jul 1st 1930 | Azores | N | |||
| Jul 11th 1930 | USA | Florida | Jensen Beach, Martin County | N | |
| Jul 19th 1930 | Cuba | Habana Province | LaPlaya Beach / Vedado, Havana | Y | |
| Aug 6th 1930 | USA | Florida | Palm Beach Inlet, Palm Beach County | N | |
| Aug 16th 1930 | Spain | Canary Islands | El Escabonal, Tenerife | N | |
| Aug 31st 1930 | Australia | Western Australia | Geraldton | N | |
| Sep 26th 1930 | Honduras | Black River | Y | ||
| Nov 30th 1930 | Australia | Queensland | St. Helena Island, Moreton Bay | N | |
| Dec 1st 1930 | Australia | New South Wales | Parramata River | Y | |
| Dec 2nd 1930 | Australia | Victoria | Rosebud | N | |
| Dec 13th 1930 | Australia | New South Wales | Sailor Bay, Middle Harbour, Sydney | Y | |
| Dec 25th 1930 | Australia | New South Wales | Homebush Bay, Parramatta River, Sydney | N |