La '''''13. sous-marins allemands de la Kriegsmarine pendant la Seconde Guerre mondiale.

Formée à Korvettenkapitän Rolf Rüggeberg.<br>
 
En , la flottille est réorganisée, lorsque la plupart des U-boots des bases françaises arrive en Norvège.<br>
Son histoire prend fin en  au moment de la capitulation allemande.
 
== Affectations ==
*  à  : Trondheim.

== Commandement ==
{| border="0" align="center" style="border: 1px solid #999; background-color:#FFFFFF" width="90%"
|+ ''Commandants de la 13 flottille de U-boots''
|- align="center" bgcolor=#bdbbd7 style="color:#000080;text-align:center;font-size:105%;" style="padding:3px;"
| '''Nom''' || '''Grade''' || '''Début''' || '''Fin'''
|- align=left bgcolor="#efefef"
| | ''[[Capitaine de frégate|Fregattenkapitän'' ||  || 
|}

== Unités ==
La flottille a reçu 55 unités durant son service, comprenant des U-boots de type VII C et C/41.

'''Unités de la 13. Unterseebootsflottille:'''
* U-212, U-251, U-255, U-277, U-278, U-286, U-288, U-293, U-294, U-295, U-299
* U-302, U-307, U-310, U-312, U-313,  U-315, U-318, U-354, U-360, U-362, U-363, U-365, U-366, U-387
* U-425, U-427
* U-586
* U-601, U-622, U-625, U-636, U-639, U-668, U-673
* U-703, U-711, U-713, U-716, U-737, U-739, U-742, U-771
* U-921, U-956, U-957, U-959, U-965, U-968, U-992, U-994, U-995, U-997
* U-1163

{{Infobox Military Unit
|unit_name=13. Unterseebootsflottille
|image=Image:13. Unterseebootsflottille.png
|caption=The 13. Unterseebootsflottille emblem
|country=Nazi Germany
|type=U-boat flottilla
|branch=Kriegsmarine
|dates=Raised June, 1943, Dissolved May, 1945
|command_structure=
|garrison=Trondheim, Norway
|nickname=
|battles=Battle of the Atlantic (1939-1945)
|notable_commanders=Korvettenkapitän Rolf Rüggeberg 
|associated units=
}}

The '''13. Unterseebootsflottille''', or ''13th submarine flotilla'' was a World War II u-boat) unit of the German Kriegsmarine stationed in Trondheim, Norway. The emblem of the unit was a cross with a viking ship in the middle.

== History ==
In 1941, construction of the June 1943, it was handed over to the flotilla commander, Type VIIC and VIIC/41 served with it until the end of the war in May 1945.

== Vessels ==
thumb|250px|[[Unterseeboot 995 ended up as the only surviving VIIC/41 submarine, first being used by the Royal Norwegian Navy as the HNoMS ''Kaura'', now a museum in Germany.]]