The 2009 Estoril Open was a tennis tournament played on outdoor clay courts.

Both the men's and the women's events took place at the Estádio Nacional in Oeiras, Portugal, from 2 May through 10 May 2009.

Other players included David Ferrer, Mardy Fish and 2001 champion Juan Carlos Ferrero.

The women's draw was headlined by 2004 and 2008 finalist Iveta Benešová and 2008 champion Maria Kirilenko.

The following players received wildcards into the main draw: The following players received entry from the qualifying draw: The following players received wildcards into the main draw: The following players received entry from the qualifying draw: Albert Montañés defeated James Blake, 5–7, 7–6(8–6), 6–0 Yanina Wickmayer defeated Ekaterina Makarova, 7–5, 6–2 Eric Butorac / Scott Lipsky defeated Martin Damm / Robert Lindstedt, 6–3, 6–2 Raquel Kops-Jones / Abigail Spears defeated Sharon Fichman / Katalin Marosi, 2–6, 6–3, [10–5]