Nineteenth is the ordinal form of the number 19 (number). Ninteenth or 19th may also refer to:
A fraction, , equal to one of 19 equal parts 19th of the month, a recurring calendar date 19th birthday, the age of majority in a several countries The 19th, nonprofit independent news organization established in Austin, Texas, in 2020
Geography 19th meridian east, a line of longitude 19th meridian west, a line of longitude 19th parallel north, a circle of latitude 19th parallel south, a circle of latitude 19th Avenue (disambiguation) 19th Street (disambiguation)
Military 19th Army (disambiguation) 19th Battalion (disambiguation) 19th Brigade (disambiguation) 19th Division (disambiguation) 19th Regiment (disambiguation) 19th Squadron (disambiguation)
Other Nineteenth Amendment (disambiguation) Nineteenth Amendment to the United States Constitution, concerning women's suffrage 19th century 19th century BC Nineteenth United States Congress
See also 19 (disambiguation)