Paul Ascher (18 December 1899 – 27 May 1941) was Admiral Günther Lütjens First Staff Officer aboard the Bismarck at the time of its sinking. He had previously served as the artillery officer aboard the Panzerschiff Admiral Graf Spee during her cruise in the South Atlantic. He directed the fire that put the heavy cruiser Exeter out of action and damaged the Ajax during the Battle of the River Plate on 13 December 1939
After the scuttling of the Graf Spee in December 1939 he was interned in Argentina but escaped back to Germany and was assigned to the Bismark. Ascher held the rank of Fregattenkapitän at the time of his death in the sinking of the Bismark.