2012 ABN AMRO World Tennis Tournament – Singles

Robin Söderling was the defending champion but could not defend his title because of a bout of mononucleosis. Roger Federer won the title beating Juan Martín del Potro 6–1, 6–4 in the final.

Seeds
• # Roger Federer (champion)

• # 🇨🇿 Tomáš Berdych (semifinals)

• # 🇦🇷 Juan Martín del Potro (final)

• # 🇪🇸 Feliciano López (first round)

• # 🇫🇷 Richard Gasquet (quarterfinals)

• # 🇺🇦 Alexandr Dolgopolov (first round)

• # 🇷🇸 Viktor Troicki (quarterfinals)

• # 🇪🇸 Marcel Granollers (first round)

Seeds
• # 🇩🇪 Matthias Bachinger (qualified)

• # 🇸🇰 Karol Beck (qualified)

• # 🇩🇪 Michael Berrer (first round)

• # Rik de Voest (qualified)

• # 🇩🇪 Daniel Brands (first round)

• # 🇧🇪 Ruben Bemelmans (first round)

• # Thomas Schoorel (qualifying round)

• # 🇨🇿 Jan Hájek (qualifying round)

Qualifiers
• # 🇸🇰 Karol Beck

• # 🇩🇪 Matthias Bachinger

• # 🇫🇷 Paul-Henri Mathieu

• # Rik de Voest