The 2012 Shanghai Rolex Masters was a men's tennis tournament that was played on outdoor hard courts. It was the fourth edition of the Shanghai ATP Masters 1000, classified as an ATP World Tour Masters 1000 event on the 2012 ATP World Tour. It took place at Qizhong Forest Sports City Arena in Shanghai, China from October 8 to October 14, 2012. Second-seeded Novak Djokovic won the singles title.
See main article: 2012 Shanghai Rolex Masters – Singles.
Novak Djokovic defeated 
Andy Murray, 5–7, 7–6(13–11), 6–3See main article: 2012 Shanghai Rolex Masters – Doubles.
Leander Paes' / 
Radek Štěpánek defeated Mahesh Bhupathi / Rohan Bopanna, 6–7(7–9), 6–3, [10–5]| width=150 | Stage | width=200 | Singles[1] | width=200 | Doubles |
|---|---|---|---|---|---|
| Champion | 1000 | ||||
| Runner up | 600 | ||||
| Semifinals | 360 | ||||
| Quarterfinals | 180 | ||||
| Round of 16 | 90 | ||||
| Round of 32 | 45 | 0 | |||
| Round of 64 | 10 | - | |||
| Qualifier | 25 | ||||
| Qualifying final round | 14 | ||||
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Roger Federer | 1 | 1 | ||
| Serbia | Novak Djokovic | 2 | 2 | |
| United Kingdom | Andy Murray | 3 | 3 | |
| Czech Republic | Tomáš Berdych | 6 | 4 | |
 France | Jo-Wilfried Tsonga | 7 | 5 | |
| Serbia | Janko Tipsarević | 9 | 6 | |
 Argentina | Juan Mónaco | 10 | 7 | |
| John Isner | 11 | 8 | ||
 Spain | Nicolás Almagro | 12 | 9 | |
| Marin Čilić | 13 | 10 | ||
| France | Richard Gasquet | 14 | 11 | |
 Canada | Milos Raonic | 15 | 12 | |
| Stanislas Wawrinka | 16 | 13 | ||
 Japan | Kei Nishikori | 17 | 14 | |
| France | Gilles Simon | 18 | 15 | |
| Philipp Kohlschreiber | 19 | 16 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Brian Baker
Alex Bogomolov Jr.
Łukasz Kubot
Marinko Matosevic Julien Benneteau → replaced by Grigor Dimitrov Juan Martín del Potro (left wrist injury) → replaced by Go Soeda David Ferrer (stomach virus) → replaced by Tommy Robredo Mardy Fish (health issues) → replaced by 
Alejandro Falla Marcel Granollers → replaced by Ryan Harrison Gaël Monfils → replaced by Albert Ramos Viñolas Rafael Nadal (left knee injury) → replaced by 
Martin Kližan Andy Roddick (retired from tennis) → replaced by Benoît Paire| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Bob Bryan | Mike Bryan | 2 | 1 | |||
| Max Mirnyi | Daniel Nestor | 6 | 2 | |||
| Robert Lindstedt | Horia Tecău | 13 | 3 | |||
| India | Leander Paes | Radek Štěpánek | 14 | 4 | ||
| Poland | Mariusz Fyrstenberg | Marcin Matkowski | 21 | 5 | ||
| Aisam-ul-Haq Qureshi | Jean-Julien Rojer | 30 | 6 | |||
| India | Mahesh Bhupathi | Rohan Bopanna | 33 | 7 | ||
| Alexander Peya | Bruno Soares | 50 | 8 |
The following pairs received wildcards into the doubles main draw:
The following pairs received entry as alternates:
