| Singles | |
|---|---|
| 2011 Proton Malaysian Open | |
| Champion |  Janko Tipsarević |
| Runner-up |  Marcos Baghdatis |
| Score | 6–4, 7–5 |
| Draw | 28 |
| Seeds | 8 |
Mikhail Youzhny was the defending champion but decided not to participate.
3rd seed Janko Tipsarević defeated Marcos Baghdatis 6–4, 7–5 to win his first ATP title in his fifth attempt.
The top four seeds received a bye into the second round.
Nicolás Almagro (quarterfinals) Viktor Troicki (semifinals) Janko Tipsarević (champion)
Jürgen Melzer (quarterfinals)
Nikolay Davydenko (quarterfinals, retired)
Alex Bogomolov Jr. (first round) Dmitry Tursunov (quarterfinals)
Kei Nishikori (semifinals)| Semifinals | Final | ||||||||||||
| 8 | Kei Nishikori | 4 | 3 | ||||||||||
| 3 | Janko Tipsarević | 6 | 6 | ||||||||||
| 3 | Janko Tipsarević | 6 | 7 | ||||||||||
| WC | Marcos Baghdatis | 4 | 5 | ||||||||||
| WC | Marcos Baghdatis | 6 | 6 | ||||||||||
| 2 | Viktor Troicki | 3 | 1 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | N Almagro | 77 | 77 | ||||||||||||||||||||||||
 M Kukushkin | 6 | 3 | 2r | A Ramos | 62 | 64 | |||||||||||||||||||||
| A Ramos | 4 | 6 | 4 | 1 | N Almagro | 77 | 4 | 4 | |||||||||||||||||||
 M Zverev | 5 | 3 | 8 | K Nishikori | 65 | 6 | 6 | ||||||||||||||||||||
| P Petzschner | 7 | 6 | P Petzschner | 3 | 6 | 5 | |||||||||||||||||||||
| Q | T Gabashvili | 6 | 4 | 1 | 8 | K Nishikori | 6 | 4 | 7 | ||||||||||||||||||
| 8 | K Nishikori | 3 | 6 | 6 | 8 | K Nishikori | 4 | 3 | |||||||||||||||||||
| 3 | J Tipsarević | 6 | 6 | ||||||||||||||||||||||||
| 3 | J Tipsarević | 6 | 6 | ||||||||||||||||||||||||
 B Tomic | 2 | 2 |  F Cipolla | 2 | 4 | ||||||||||||||||||||||
| F Cipolla | 6 | 6 | 3 | J Tipsarević | 3 | ||||||||||||||||||||||
 Ł Kubot | 6 | 6 | 5 | N Davydenko | 1 | r | |||||||||||||||||||||
 L Rosol | 3 | 3 | Ł Kubot | 3 | 62 | ||||||||||||||||||||||
| R Harrison | 3 | 2 | 5 | N Davydenko | 6 | 77 | |||||||||||||||||||||
| 5 | N Davydenko | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | A Bogomolov Jr. | 63 | 4 | ||||||||||||||||||||||||
| WC | M Baghdatis | 77 | 6 | WC | M Baghdatis | 7 | 6 | ||||||||||||||||||||
| Q | M Ledovskikh | 65 | 4 |  S Devvarman | 5 | 4 | |||||||||||||||||||||
| S Devvarman | 77 | 6 | WC | M Baghdatis | 6 | 77 | |||||||||||||||||||||
| Q |  R de Voest | 4 | 6 | 6 | 4 | J Melzer | 3 | 63 | |||||||||||||||||||
| R Sweeting | 6 | 3 | 3 | Q | R de Voest | 0 | 4 | ||||||||||||||||||||
| 4 | J Melzer | 6 | 6 | ||||||||||||||||||||||||
| WC | M Baghdatis | 6 | 6 | ||||||||||||||||||||||||
| 7 | D Tursunov | 6 | 2 | 6 | 2 | V Troicki | 3 | 1 | |||||||||||||||||||
 P Capdeville | 2 | 6 | 1 | 7 | D Tursunov | 6 | 6 | ||||||||||||||||||||
| WC |  D Goffin | 6 | 77 | WC | D Goffin | 3 | 3 | ||||||||||||||||||||
| WC | M Ebden | 4 | 64 | 7 | D Tursunov | 4 | 4 | ||||||||||||||||||||
 D Istomin | 6 | 6 | 2 | V Troicki | 6 | 6 | |||||||||||||||||||||
| Q | M Matosevic | 3 | 2 | D Istomin | 1 | 4 | |||||||||||||||||||||
| 2 | V Troicki | 6 | 6 | ||||||||||||||||||||||||
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