| Unit Name: | 19th U-boat Flotilla |
| Type: | U-boat flotilla |
| Dates: | October 1943 - May 1945 |
| Garrison: | Pillau (October 1943 - February 1945) Kiel (February - May 1945) |
| Notable Commanders: | Korvettenkapitän Jost Metzler |
The 19th U-boat Flotilla (German 19. Unterseebootsflottille) was a unit of Nazi Germany's Kriegsmarine during World War II.
It was founded in October 1943 as a Training Flotilla (Ger. Ausbildungsflottille) where future commanders received their basic training (Kommandanten-Vorschule), under the command of Korvettenkapitän Jost Metzler. Originally based at Pillau, it relocated to Kiel in February 1945. It was disbanded in May 1945 when Germany surrendered.[1]
Four U-boats were assigned to this flotilla during its service.