The 2011 Masters (officially the 2011 Ladbrokes Mobile Masters) was a professional non-ranking snooker tournament held between 9–16 January 2011 at the Wembley Arena in London, England. This was the first time that the Masters was sponsored by Ladbrokes.

Mark Selby was the defending champion, but he lost in the first round 4–6 against Mark King.

The event was the first to feature two Asian players in the final, as well as the first Masters final to feature two players not from the United Kingdom. Ding Junhui won in the final 10–4 against Marco Fu.

Defending champion Mark Selby was the number 1 seed with World Champion Neil Robertson seeded 2. The remaining places were allocated to players based on the latest world rankings (revision 2). Jamie Cope was making his debut in the Masters.

Unlike all previous tournaments since 1990, there was no qualifying round and there was no wildcard hand-picked by World Snooker. This format has remained in place since.

The winner received £150,000 from a total prize fund of £500,000. The breakdown of prize money for the event is shown below:

The first-round matches were played from 9 to 12 January as the best of 11 frames.

The defending champion Mark Selby made a 70 break and then doubled his lead over Mark King in the second frame. King replied with a 139 break, and he also won frames four and five to take the lead for the first time. He then extended his lead by taking the next frame, in which both players produced half-centuries. Selby made a 106 break as he took the following two frames to tie the scores. King produced breaks of 79, 50, and 77 as he won back-to-back frames for a 6–4 victory. It was Selby's second defeat in the last twelve matches he had played at the Masters. "Mark [Selby] is a fantastic player and this is like his backyard, but he won the second frame and put his cue up and it gave me the hump a bit," King said. He attributed the result to his having worked on improving his break-building.