17 attacks recorded (7 fatal)
| Date | Country | Region | Location | Fatal? | |
|---|---|---|---|---|---|
| Jul 1st 1911 | Asia? | N | |||
| Jul 1st 1911 | Vietnam | Ba Ria-Vung Tau province | Vung T | N | |
| Jul 1st 1911 | New Zealand | North Island | Manukau Harbor, 6 miles south of Auckland | Y | |
| Jul 1st 1911 | USA | Texas | Texas City, Galveston | N | |
| Jan 4th 1911 | Australia | Western Australia | Off Legendre Island | N | |
| Mar 29th 1911 | Torres Strait | Thursday Island | Y | ||
| May 1st 1911 | USA | Texas | Rockport, Aransas County | N | |
| May 1st 1911 | South Africa | Western Cape Province | Victoria Bay | Y | |
| May 9th 1911 | South Africa | Western Cape Province | Victoria Bay | Y | |
| Jul 1st 1911 | Spain | Ceuta | N | ||
| Jul 16th 1911 | USA | Delaware | Delaware Lightship | N | |
| Sep 17th 1911 | USA | Florida | Pablo Beach, Jacksonville, Duval County | N | |
| Sep 20th 1911 | USA | Florida | Pensacola Bay, Escambia County | Y | |
| Sep 23rd 1911 | USA | Texas | Galveston Ship Channel | Y | |
| Oct 25th 1911 | Australia | Queensland | Great Barrier Reef | N | |
| Oct 26th 1911 | USA | South Carolina | Off Charleston | Y | |
| Nov 8th 1911 | USA | Florida | Pensacola Bay, Escambia County | N |