2011 WPA World Nine-ball Junior Championship

The 2011 WPA World Nine-ball Junior Championships was the 20th hosting of the Junior World Championship in the pool discipline 9-Ball. The event ran from 1–3 September 2011 in Kielce, Poland.

Tournament format
All three competitions were first held in the double-elimination tournament with a single-elimination tournament from the quarter-finals onwards. The events were all played under the winner-breaks format.