2012 Nottingham Challenge – Men's singles

Dudi Sela was the defending champion, but he lost in the quarterfinals to Grega Žemlja. Grega Žemlja won the title defeating Karol Beck in the final 7–6(7–3), 4–6, 6–4.

Seeds
• # 🇮🇱 Dudi Sela (quarterfinals)

• # 🇸🇰 Karol Beck (final)

• # 🇺🇸 Michael Russell (second round)

• # 🇺🇸 Rajeev Ram (first round)

• # 🇹🇷 Marsel İlhan (first round)

• # Grega Žemlja (champion)

• # 🇺🇸 Jesse Levine (semifinals)

• # Rik de Voest (second round)