2012 AON Open Challenger – Singles

Martin Kližan was the defending champion but decided not to participate. Albert Montañés won the title, defeating Tommy Robredo 6–4, 6–1 in the final.

Seeds
• # 🇮🇹 Andreas Seppi (quarterfinals)

• # 🇮🇹 Fabio Fognini (withdrew because of a muscle strain)

• # 🇮🇹 Paolo Lorenzi (first round)

• # 🇮🇹 Filippo Volandri (semifinals)

• # 🇮🇹 Simone Bolelli (semifinals)

• # 🇨🇿 Lukáš Rosol (first round)

• # 🇪🇸 Albert Montañés (champion)

• # Frederico Gil (second round)