Fifty-sixth is the ordinal form of the number 56. Fifty-sixth or 56th may also refer to:
A fraction, , equal to one of 56 equal parts
Geography 56th meridian east, a line of longitude 56th meridian west, a line of longitude 56th parallel north, a circle of latitude 56th parallel south, a circle of latitude 56th Street (disambiguation)
Military 56th Brigade (disambiguation) 56th Division (disambiguation) 56th Regiment (disambiguation) 56th Squadron (disambiguation)
Other 56th century 56th century BC
See also 56 (disambiguation)