2012 Qatar Open – Singles

Roger Federer was the defending champion, but was forced to withdraw from the tournament before the semifinals because of a back injury. Following Federer's withdrawal, Stefan Edberg and Jo-Wilfried Tsonga played a one set exhibition match to make up the evening session.

Tsonga won the title beating Gaël Monfils in an all-French final, 7–5, 6–3.

Seeds
• # 🇪🇸 Rafael Nadal (semifinals)

• # Roger Federer (semifinals, withdrew due to a back injury)

• # 🇫🇷 Jo-Wilfried Tsonga (champion)

• # 🇫🇷 Gaël Monfils (final)

• # 🇷🇸 Viktor Troicki (quarterfinals)

• # 🇷🇺 Alex Bogomolov Jr. (second round, withdrew due to a right ankle injury)

• # 🇷🇺 Mikhail Youzhny (quarterfinals)

• # 🇮🇹 Andreas Seppi (quarterfinals)

Seeds
• # 🇩🇪 Matthias Bachinger (qualified)

• # 🇹🇷 Marsel İlhan (second round)

• # 🇸🇰 Lukáš Lacko (second round)

• # Grega Žemlja (qualified)

• # 🇸🇰 Martin Kližan (first round)

• # 🇩🇪 Rainer Schüttler (qualifying competition)

• # 🇰🇿 Andrey Golubev (qualifying competition)

• # 🇩🇪 Björn Phau (second round)

Qualifiers
• # 🇩🇪 Matthias Bachinger

• # 🇩🇪 Denis Gremelmayr

• # 🇪🇸 Roberto Bautista-Agut

• # Grega Žemlja