68th is the ordinal form of the number 68. 68th or Sixty-eighth may also refer to:
A fraction, , equal to one of 68 equal parts
Geography 68th meridian east, a line of longitude 68th meridian west, a line of longitude 68th parallel north, a circle of latitude 68th parallel south, a circle of latitude 68th Street (Manhattan)
Military 68th Army (Soviet Union) 68th Brigade (disambiguation) 68th Division (disambiguation) 68th Regiment (disambiguation) 68th Squadron (disambiguation)
Other 68th century 68th century BC
See also 68 (disambiguation)