| Rank | Location | Death Toll | Event | Year | |
|---|
| 1 | China | 2,500,000 | 1931 China floods | 1931 | |
| 2 | China | 900,000 | 1887 Yellow River flood | 1887 | |
| 3 | China | 500,000 | 1938 Yellow River flood | 1938 | |
| 4 | China | 231,000 | Typhoon Nina | 1975 | |
| 5 | China | 145,000 | 1935 Yangtze river flood | 1935 | |
| 6 | Netherlands | 100,000 | St. Felix's Flood, storm surge | 1530 | |
| 7 | North Vietnam | 100,000 | Hanoi and Red River Delta flood | 1971 | |
| 8 | China | 100,000 | 1911 Yangtze river flood | 1911 | |
| 9 | Netherlands | 50,000 | St. Lucia's flood, storm surge | 1287 | |
| 10 | Netherlands | 60,000 | North Sea flood, storm surge | 1212 | |