46th is the ordinal form of the number 46. 46th or Forty-sixth may also refer to:
A fraction, , equal to one of 46 equal parts
Geography 46th meridian east, a line of longitude 46th meridian west, a line of longitude 46th parallel north, a circle of latitude 46th parallel south, a circle of latitude 46th Street (disambiguation)
Military 46th Army 46th Brigade (disambiguation) 46th Division (disambiguation) 46th Regiment (disambiguation) 46th Squadron (disambiguation)
Other 46th century 46th century BC
See also 46 (disambiguation)