Walter Flachsenberg
German navy officer and world war II U-boat commander, Admiral in the Federal German Navy
- Born: 1908-10-26 (Mönchengladbach)
- Died: 1994-11-03 (Westerland)
- Country of citizenship: Nazi Germany (period: 1933-03-24 through 1945-05-08)
- Occupation: Marineoffizier; military officer; soldier (period: 1928-04-01 through 1945-05-08); submariner
- Military rank: Flottilla admiral; Korvettenkapitän (icon: http://commons.wikimedia.org/wiki/Special:FilePath/Kriegsmarine%20epaulette%20Korvettenkapit%C3%A4n.svg, http://commons.wikimedia.org/wiki/Special:FilePath/Kriegsmarine-Korvettenkapit%C3%A4n.png; period: 1942-07-01 through 1945-05-08)
- Military branch: German Navy (period: 1928-04-01 through 1935-05-31); Kriegsmarine (period: 1935-06-01 through 1945-05-08); West German Navy
- VIAF ID: https://viaf.org/viaf/2579148122893895200000
- WorldCat Identities ID: https://worldcat.org/identities/viaf-2579148122893895200000