2012 Qatar Airways Tournament of Champions – Singles

Ana Ivanovic was the two-time defending champion, but didn't qualify and was not able to compete as a wildcard due to playing in the Fed Cup.

Second seed Nadia Petrova won the title, defeating top seed Caroline Wozniacki in the final. This was Petrova's 13th and final WTA singles title before announcing her retirement in January 2017 (she played her last tournament in April 2014).

Players
• # Caroline Wozniacki (final)

• # 🇷🇺 Nadia Petrova (champion)

• # 🇷🇺 Maria Kirilenko (round robin, withdrew)

• # 🇮🇹 Roberta Vinci (semifinals)

• # Hsieh Su-wei (round robin)

• # 🇨🇳 Zheng Jie (round robin, Retired)

• # 🇸🇰 Daniela Hantuchová (round robin)

• # 🇧🇬 Tsvetana Pironkova (semifinals)

Alternates
• # 🇸🇪 Sofia Arvidsson (round robin, Replaced Kirilenko)

• # 🇫🇷 Alizé Cornet (Not Used)

Draw
The eight players have been drawn into two groups – "Serdika" and "Sredets" – which are the ancient names of the city of Sofia during the thracian, respectively medieval period of Bulgarian history.

Serdika group
''Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.''

Sredets group
''Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.''