List of shipwrecks in April 1943

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

For the foundering of the British cargo ship Nagara on this day, see the entry for 29 March 1943.

World War II: The Type IXC submarine was depth charged and sunk in the Atlantic Ocean (47°53′N 22°04′W / 47.883°N 22.067°W / 47.883; -22.067) by USCGC Spencer ( United States Coast Guard) with the loss of thirteen of her 54 crew.

Survivors were rescued by USCGC Spencer and USCGC Duane ( United States Coast Guard) and made prisoners of war.

World War II: The No.31-class patrol boat was torpedoed and sunk in the Philippine Sea off Yonaguni Island (23°48′N 122°42′E / 23.800°N 122.700°E / 23.800; 122.700) by the submarine USS Seawolf ( United States Navy).

U-175
Patrol Boat No. 39 sinking after being torpedoed by USS Seawolf on 23 April 1943.
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