Career
Schultze joined the Kaiserliche Marine (Imperial Navy) on 7 April 1900 as a Seekadett (sea cadet). He initially served on König during World War I before transferring to the U boat service in 1915, taking command of U-63. He surrendered command of U-63 in mid-December 1917.
He then served a first officer of the admiral staff of the commander in chief of the U boats at the Mediterranean Sea.
At the same time, he held the position of chief of the I. U-Boot-Flottille (1st U boat Flotilla). Between the wars, he held various staff positions.
From September 1927-September 1929, he was commander of Elsass. In October, he took command of the Marinestation der Nordsee (North Sea Naval Station).
He was promoted to Vizeadmiral (Vice Admiral) in 1934 and to Admiral in 1936 retiring in 1937.
With the outbreak of World World War II, he was reactivated into active service. Otto Schultze retired on 31 August 1942. Knight"s Cross of the House and Merit Order of Peter Frederick Louis with Swords War Merit Cross, 2nd and with Swords.