| Tournament Name: | 2011 WPA World Nine-ball Juniors Championship |
| Startdate: | 1 |
| Enddate: | 3 September 2011 |
| Venue: | Hotel Lysogory |
| City: | Kielce |
| Country: | Poland |
| Organisation: | WPA |
| Format: | double elimination, single elimination |
| Winner: | Marek Kudlik (boys) Oliwia Czupryńska (girls) |
| Previous: | 2010 |
| Next: | 2012 |
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.
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.[1] [2]