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

Other entrants

The following players received wildcards into the singles main draw: The following players received a Special Exempt into the main draw: The following players received entry from the qualifying draw:

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]