U47

U47 may refer to:

Naval vessels

 * GERMAN SUBMARINE U-47, various vessels
 * HMS Fleetwood (U47), a sloop of the Royal Navy
 * SM U-47, a submarine of the Austro-Hungarian Navy

Other uses

 * Great ditrigonal icosidodecahedron
 * Neumann U 47, a microphone
 * Small nucleolar RNA SNORD47
 * U 47 – Kapitänleutnant Prien, a German war film
 * Uppland Runic Inscription 47
 * U47, a line of the Dortmund Stadtbahn