German submarine U-1306 was a Type VIIC/41 U-boat of Nazi Germany's Kriegsmarine during World War II.

She was launched on 25 October 1944, and commissioned under the command of Oberleutnant zur See Ulrich Kiessling on 20 December 1944.

The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, two AEG GU 460/8-276 double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged.

U-1306 was one of only ten Type VIICs to be fitted with a Balkongerät (literally 'Balcony apparatus or equipment').

The Balkongerät was an improved version of Gruppenhorchgerät (GHG) (group listening device).