2012 Open Castilla y León – Singles

Karol Beck was the defending champion, but chose not to participate this year. Evgeny Donskoy won the tournament by defeating Albano Olivetti 6–1, 7–6(13–11) in the final.

Seeds
• # 🇪🇸 Daniel Gimeno Traver (quarterfinals)

• # 🇪🇸 Daniel Muñoz de la Nava (first round)

• # 🇷🇸 Dušan Lajović (second round)

• # 🇷🇺 Evgeny Donskoy (champion)

• # 🇷🇺 Konstantin Kravchuk (semifinals)

• # 🇫🇷 Kenny de Schepper (second round)

• # 🇦🇷 Facundo Argüello (second round)

• # 🇪🇸 Iván Navarro (second round)