2011 Brisbane International – Women's singles

Kim Clijsters was the defending champion, but decided not to compete this year.

Petra Kvitová won the title, defeating Andrea Petkovic in the final 6–1, 6–3.

Seeds
• # 🇦🇺 Samantha Stosur (second round)

• # 🇮🇱 Shahar Pe'er (second round)

• # 🇷🇺 Nadia Petrova (first round)

• # 🇫🇷 Marion Bartoli (semifinals)

• # 🇷🇺 Anastasia Pavlyuchenkova (semifinals)

• # 🇮🇹 Flavia Pennetta (withdrew due to food poisoning)

• # 🇷🇺 Alisa Kleybanova (first round)

• # 🇷🇴 Alexandra Dulgheru (first round)

Seeds
• # 🇧🇾 Olga Govortsova (first round)

• # 🇷🇴 Monica Niculescu (first round)

• # 🇺🇸 Vania King (qualifier)

• # 🇨🇳 Zhang Shuai (first round)

• # 🇷🇴 Sorana Cîrstea (second round)

• # Karolina Šprem (second round)

• # 🇷🇺 Ksenia Pervak (qualifying competition, lucky loser)

• # 🇨🇿 Andrea Hlaváčková (second round)

Qualifiers
• # 🇷🇺 Anastasia Pivovarova

• # 🇨🇿 Lucie Hradecká

• # 🇺🇸 Vania King

• # Anna Tatishvili

Lucky losers
• # 🇺🇸 Christina McHale

• # 🇷🇺 Ksenia Pervak