The Japanese B3-type submarine IJN I-58 sunk the USS Indianapolis (CA-35) on July 30, 1945. The Indianapolis was returning from delivering critical parts for the the Fat Man atomic bomb to Tinian Island.
Out of a crew of almost 1196, only 316 survived. Over 300 were killed in the initial attack; 880 sailors went into the water, and many were killed by shark attacks. As the Indianapolis' mission was highly classified, she wasn't reported overdue or missing, and it was only by sheer luck that the last survivors were spotted by a Navy PV-1 Ventura on routine patrol 4 days after the attack.
The USS Indianapolis sank after being hit by torpedoes launched from a Japanese mini-submarine.
A USN heavy cruiser sunk by a Japanese submarine in 1945.
The USS Indianapolis was a Portland-class heavy cruiser. It carried the components for the Hiroshima/Nagasaki bombing. It sunk when it was attacked by a submarine.
He was Commander Mochitsura Hashimoto.
The USS Indianapolis was sunk by a Japanese submarine torpedo after they had delivered the atomic bombs. The mission was so secret the ship was missing for 7 days before it was reported missing in action.
The USS Housatonic, sunk by the Confederate submarine CSS Hunley.
The last Navy ship to be officially recorded as being sunk by enemy action in WW2 was the USS Bullhead (SS-332), on 6 August 1945, the day Hiroshima was attacked. A Balao-class submarine, the Bullhead was sunk by engagement from a Japanese Army aircraft, which dropped depth charges on the Bullhead, claiming 2 direct hits. The geographic area she was in when sunk is believed to have reduced her radar range, and thus prevented her from detecting the plane until it was too late.Though the initial answer to this question mentioned the Indianapolis, that answer is incorrect. The Indianapolis was sunk by a Japanese submarine on 29 July 1945, over a week prior to the Bullhead. The last U.S. ship sunk was the submarine USS Bullhead SS 332 sunk by the Japanese aircraft on August 6, 1945 at the west end of Lombok Strait.
USS Thresher
USS Johnston ship
It was sunk on July 30, 1945 by a torpedo from a Japanese sub. Of about 1000 that survived the sinking 317 were recovered, some being in the water for up to 5 days.
Approximately 36 US Navy ships were sunk during the Kamikaze attacks at Okinawa in April thru May 1945. None larger than a US Destroyer. The last large US warship sunk in 1945, was the heavy cruiser, USS Indianapolis; by a Japanese submarine.
During World War II, the USS Indianapolis was sunk by a Japanese torpedo. The ship sank and oceanic whitetip sharks killed many of the men.