|Formed||23 September 1551 or 1556|
|Max. rating1||F3 tornado|
|Casualties||600 fatalities (estimated)|
|Areas affected||Grand Harbour, Malta|
|1Most severe tornado damage; see Fujita scale|
The Grand Harbour of Malta tornado was a tornado that hit the Grand Harbour of Malta on 23 September 1551 or 1556 with very intense strength. It began as a waterspout killing at least 600 people. At least four of the Order's galleys, named Santa Fè, San Michele, San Filippo and San Claudio, capsized in the tornado.