58th is the ordinal form of the number 58. 58th or Fifty-eighth may also refer to:

A fraction, , equal to one of 58 equal parts

Geography 58th meridian east, a line of longitude 58th meridian west, a line of longitude 58th parallel north, a circle of latitude 58th parallel south, a circle of latitude 58th Street (disambiguation)

Military Fifty-Eighth Army (Japan) 58th Guards Combined Arms Army, Russian Ground Forces 58th Brigade (disambiguation) 58th Division (disambiguation) 58th Regiment (disambiguation) 58th Squadron (disambiguation) 58th Special Operations Wing, U.S. Air Force

Other 58th century 58th century BC 58th Texas Legislature 58th United States Congress Fifty-eighth session of the United Nations General Assembly Fifty-eighth Amendment of the Constitution of India 58th (film), 2026 Philippine adult animated biographical drama film

See also 58 (disambiguation)