29th is the ordinal form of the number 29. 29th or Twenty-ninth may also refer to:

A fraction, , equal to one of 29 equal parts 29th of the month, a recurring calendar date

Geography 29th meridian east, a line of longitude 29th meridian west, a line of longitude 29th parallel north, a circle of latitude 29th parallel south, a circle of latitude 29th Avenue 29th Street (disambiguation)

Military 29th Army (disambiguation) 29th Battalion (disambiguation) 29th Brigade (disambiguation) 29th Division (disambiguation) 29th Regiment (disambiguation) 29th Squadron (disambiguation)

Other Twenty-ninth Amendment 29th century 29th century BC

See also 29 (disambiguation)