The 2011 Estoril Open was a tennis tournament played on outdoor clay courts. It was the 22nd edition of the Estoril Open for the men (the 15th for the women), and was part of the ATP World Tour 250 series of the 2011 ATP World Tour, and of the International-level tournaments of the 2011 WTA Tour. Both the men's and the women's events took place at the Estádio Nacional in Oeiras, Portugal, from 23 April through 1 May 2011.
ATP entrants
Seeds
Seedings are based on the rankings of April 18, 2011.
Other entrants
The following players received wildcards into the main draw: Gastão Elias João Sousa Jo-Wilfried Tsonga
The following players received entry from the qualifying draw:
Flavio Cipolla
Frederik Nielsen
Édouard Roger-Vasselin
Pedro Sousa
WTA entrants
Seeds
Seedings are based on the rankings of April 18, 2011.
Other entrants
The following players received wildcards into the main draw: Maria João Köhler Magali de Lattre Bárbara Luz
The following players received entry from the qualifying draw:
Beatriz García Vidagany
Tamira Paszek
Sloane Stephens
Anastasiya Yakimova
Finals
Men's singles
Juan Martín del Potro defeated Fernando Verdasco, 6–2, 6–2
It was del Potro' 2nd title of the year and 9th of his career.
Women's singles
Anabel Medina Garrigues defeated Kristina Barrois, 6–1, 6–2. It was Medina Garrigues' 1st title of the year and 10th of her career.
Men's doubles
Eric Butorac / Jean-Julien Rojer defeated Marc López / David Marrero, 6–3, 6–4.
Women's doubles
Alisa Kleybanova / Galina Voskoboeva defeated Eleni Daniilidou / Michaëlla Krajicek, 6–4, 6–2.