List of shipwrecks in September 1943

The list of shipwrecks in 1943 includes ships sunk, foundered, grounded, or otherwise lost during September 1943.

World War II: The Littorio-class battleship was sunk in the Mediterranean Sea off Asinara by a Fritz X launched by a Dornier Do 217 of the Luftwaffe with the loss of 1,393 of her 2,021 crew.

World War II: Operation Avalanche: The Brooklyn-class cruiser was struck by a Fritz X bomb and severely damaged with the loss of 197 of her 868 crew.

She sailed to Malta for temporary repairs.

After permanent repairs in the United States, she re-entered service in September 1944.