2012 Proton Malaysian Open

The 2012 Proton Malaysian Open was a professional men's tennis tournament played on hard courts. It was the fourth edition of the tournament, and part of the 2012 ATP World Tour. It took place in Kuala Lumpur, Malaysia between 24 and 30 September 2012. Juan Mónaco won the singles title.

Seeds

 * 1 Rankings are as of 17 September 2012

Other entrants
The following players received wildcards into the singles main draw:
 * 🇷🇺 Philip Davydenko
 * Ariez Elyaas Deen Heshaam
 * Jimmy Wang

The following players received entry from the qualifying draw:
 * 🇮🇹 Riccardo Ghedin
 * 🇬🇧 Dominic Inglot
 * 🇦🇹 Julian Knowle
 * 🇺🇸 Michael Yani

The following player received entry as lucky loser:
 * 🇮🇳 Sanam Singh

Withdrawals

 * 🇨🇾 Marcos Baghdatis
 * 🇨🇴 Santiago Giraldo
 * 🇸🇰 Martin Kližan (oblique muscle injury)
 * 🇺🇸 Sam Querrey
 * 🇮🇹 Andreas Seppi (fatigue)

Retirements

 * 🇷🇺 Nikolay Davydenko
 * 🇦🇹 Jürgen Melzer (left quadriceps injury)

Seeds

 * Rankings are as of 17 September 2012

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇲🇾 Mohd Assri Merzuki / 🇲🇾 Syed Mohammad Agil Naguib
 * 🇲🇾 Si Yew Ming / Jimmy Wang

The following pair received entry as alternates:
 * 🇨🇦 Vasek Pospisil / 🇮🇳 Sanam Singh

Withdrawals

 * 🇦🇹 Jürgen Melzer (left quadriceps injury)

Retirements

 * 🇸🇰 Martin Kližan (oblique muscle injury)

Singles

 * 🇦🇷 Juan Mónaco defeated 🇫🇷 Julien Benneteau 7–5, 4–6, 6–3

Doubles

 * 🇦🇹 Alexander Peya / 🇧🇷 Bruno Soares defeated 🇬🇧 Colin Fleming / 🇬🇧 Ross Hutchins, 5–7, 7–5, [10–7]