The 2009 Welsh Open was a professional ranking snooker tournament that took place between 16 and 22 February 2009 at the Newport Centre in Newport, Wales. The defending champion was Mark Selby, but he lost in the quarter-finals against Anthony Hamilton. The event was won Ali Carter, who claimed his first ranking tournament win by defeating Joe Swail 9–5 in the final, having come back from 2–5 down. This was the first ranking final refereed by Colin Humphries.

Prize fund

The breakdown of prize money for this year is shown below:

Main draw

Final

Qualifying

These matches took place between 3 and 6 February 2009 at the Pontins Centre in Prestatyn, Wales.

Century breaks

Qualifying stage centuries

Televised stage centuries