Eleventh or 11th may refer to:
The ordinal form of the number eleven A fraction, , equal to one of 11 equal parts Eleventh of the month, a recurring calendar date Eleventh grade, in education Eleventh (interval)
Geography 11th meridian east, a line of longitude 11th meridian west, a line of longitude 11th parallel north, a circle of latitude 11th parallel south, a circle of latitude Eleventh Avenue (disambiguation) 11th Street (disambiguation)
Military 11th Armored (disambiguation) Eleventh Army (disambiguation) 11th Battalion (disambiguation) 11th Brigade (disambiguation) 11th Division (disambiguation) 11th Group (disambiguation) 11th Regiment (disambiguation) 11th Squadron (disambiguation)
Other Eleventh Amendment (disambiguation) Eleventh Amendment to the United States Constitution Eleventh Doctor in Doctor Who media The 11th, experimental podcast aired from 2022 to 2023 The Eleventh, 1996 studio album by industrial metal band Rorschach Test United States Court of Appeals for the Eleventh Circuit 11th century 11th century BC
See also 11 (disambiguation) 11th cabinet (disambiguation) 11th Congress (disambiguation) 11th dimension (disambiguation) The Eleventh Hour (disambiguation) The Eleventh Commandment (disambiguation)