U46

U46, U 46 or U-46 may refer to:


 * Elgin Area School District U46, in Elgin, Illinois
 * GERMAN SUBMARINE U-46, various vessels
 * , a sloop of the Royal Indian Navy
 * Small nucleolar RNA SNORD46
 * Snub icosidodecadodecahedron
 * Uppland Runic Inscription 46
 * U46, a line of the Dortmund Stadtbahn