2012 Malaysian Open – Singles

Jelena Dokić was the defending champion, but lost in the second round to compatriot Olivia Rogowska.

Hsieh Su-wei took the title by defeating No.5 seed Petra Martić in the final 2–6, 7–5, 4–1. Martić retired due to fatigue and cramping after playing a three-hour semifinal match earlier in the day.

Seeds
• # 🇵🇱 Agnieszka Radwańska (quarterfinals, withdrew due to a right elbow injury)

• # 🇷🇸 Jelena Janković (semifinals)

• # 🇨🇳 Peng Shuai (quarterfinals)

• # 🇦🇺 Jarmila Gajdošová (second round)

• # Petra Martić (final, retired due to fatigue and cramping)

• # 🇯🇵 Ayumi Morita (quarterfinals, withdrew due to a right shoulder injury)

• # 🇦🇺 Jelena Dokić (second round)

• # 🇬🇧 Anne Keothavong (first round)

Seeds
The top seed received a bye into the second round (of the qualifying). • # Hsieh Su-wei (qualified)

• # 🇨🇿 Karolína Plíšková (qualified)

• # 🇨🇿 Kristýna Plíšková (qualified)

• # 🇯🇵 Rika Fujiwara (second round)

• # 🇷🇴 Elena Bogdan (qualifying competition)

• # 🇹🇭 Varatchaya Wongteanchai (first round)

• # 🇭🇰 Zhang Ling (first round)

• # Ayu Fani Damayanti (qualifying competition)

Qualifiers
• # Hsieh Su-wei

• # 🇨🇿 Karolína Plíšková

• # 🇨🇿 Kristýna Plíšková

• # 🇹🇭 Nudnida Luangnam