79th is the ordinal form of the number 79. 79th or Seventy-ninth may also refer to:
A fraction, , equal to one of 79 equal parts
Geography 79th meridian east, a line of longitude 79th meridian west, a line of longitude 79th parallel north, a circle of latitude 79th parallel south, a circle of latitude 79th Street (disambiguation)
Military 79th Group Army, People's Republic of China 79th Brigade (disambiguation) 79th Division (disambiguation) 79th Regiment (disambiguation) 79th Squadron (disambiguation)
Other 79th century 79th century BC
See also 79 (disambiguation)