The 2009 Open Castilla y León was a professional tennis tournament played on outdoor hard courts. It was the twenty fourth edition of the tournament which was part of the Tretorn SERIE+ of the 2009 ATP Challenger Tour. It took place in Segovia, Spain between 3 and 9 August 2009.
Singles entrants
Seeds
Rankings are as of July 27, 2009.
Other entrants
The following players received wildcards into the singles main draw: Roberto Bautista Agut Jorge Hernando Ruano Feliciano López Quino Muñoz
The following players received a Special Exempt into the main draw: Íñigo Cervantes Huegun Illya Marchenko
The following players received entry from the qualifying draw: Grigor Dimitrov Sergio Gutiérrez Ferrol Jean-Noel Insausti Fernando Vicente
Champions
Singles
Feliciano López def. Adrian Mannarino, 6–3, 6–4
Doubles
Nicolas Mahut / Édouard Roger-Vasselin def. Sergiy Stakhovsky / Lovro Zovko, 6–7(4), 6–3, [10–8]