50th is the ordinal form of the number 50. 50th or Fiftieth may also refer to:
A fraction, , equal to one of 50 equal parts 50th anniversary, also known as a Golden jubilee
Geography 50th meridian east, a line of longitude 50th meridian west, a line of longitude 50th parallel north, a circle of latitude 50th parallel south, a circle of latitude 50th Street (disambiguation)
Military 50th Army (disambiguation) 50th Brigade (disambiguation) 50th Division (disambiguation) 50th Regiment (disambiguation) 50th Squadron (disambiguation)
Other 50th century 50th century BC
See also 50 (disambiguation) The Fiftieth Gate, 1997 Australian non-fiction book