41st is the ordinal form of the number 41. 41st or Forty-first may also refer to:
A fraction, , equal to one of 41 equal parts
Geography 41st meridian east, a line of longitude 41st meridian west, a line of longitude 41st parallel north, a circle of latitude 41st parallel south, a circle of latitude 41st Street (disambiguation)
Military 41st Army (disambiguation) 41st Battalion (disambiguation) 41st Brigade (disambiguation) 41st Division (disambiguation) 41st Regiment (disambiguation) 41st Squadron (disambiguation)
Other 41st century 41st century BC
See also 41 (disambiguation) The Forty-First (disambiguation)