From Weather Underground. Note that of these only one has occurred since the supposed onset of man-made global warming. The latest tragic cyclone should come in at #10 or thereabouts.
Rank: Name / Areas of Largest Loss: Year: Ocean Area: Deaths:
1. Great Bhola Cyclone, Bangladesh 1970 Bay of Bengal 550,000
2. Hooghly River Cyclone, India and Bangladesh 1737 Bay of Bengal 350,000
3. Haiphong Typhoon, Vietnam 1881 West Pacific 300,000
3. Coringa, India 1839 Bay of Bengal 300,000
5. Backerganj Cyclone, Bangladesh 1584 Bay of Bengal 200,000
6. Great Backerganj Cyclone, Bangladesh 1876 Bay of Bengal 200,000
7. Chittagong, Bangladesh 1897 Bay of Bengal 175,000
8. Super Typhoon Nina, China 1975 West Pacific 171,000
9. Cyclone 02B, Bangladesh 1991 Bay of Bengal 140,000
10. Great Bombay Cyclone, India 1882 Arabian Sea 100,000
11. Hakata Bay Typhoon, Japan 1281 West Pacific 65,000
12. Calcutta, India 1864 Bay of Bengal 60,000
13. Swatlow, China 1922 West Pacific 60,000
14. Barisal, Bangladesh 1822 Bay of Bengal 50,000
15. Sunderbans coast, Bangladesh 1699 Bay of Bengal 50,000
16. Bengal Cyclone, Calcutta, India 1942 Bay of Bengal 40,000
17. Canton, China 1862 West Pacific 37,000
18. Backerganj (Barisal), Bangladesh 1767 Bay of Bengal 30,000
19. Barisal, Bangladesh 1831 Bay of Bengal 22,000
20. Great Hurricane, Lesser Antilles Islands 1780 Atlantic 22,000