U28

U28 may refer to:

Naval vessels

 * GERMAN SUBMARINE U-28, various vessels
 * HMS Wren (U28), a sloop of the Royal Navy
 * SMS U-28 (Austria-Hungary), a submarine of the Austro-Hungarian Navy

Other uses

 * Pilatus U-28A Draco, an American utility aircraft
 * Small nucleolar RNA SNORD28
 * Truncated icosidodecahedron
 * U 28, a regional railway route in Saxony