Question, were any American battleships sunk by enemy fire of any kind after Pearl Harbor?
No American battleships were sunk by Japanese gunfire during WWII. Several were damaged by Kamikaze attacks.
Washington sank Kirishima. I believe it’s the only battleship sunk by a battleship in the pacific war.
No. Japan had some fortified batteries on Okinawa island and some US destroyers were sunk, some because of Kamikazes. USS carrier Franklin was heavily damaged.