2016 Estoril Open

The 2016 Estoril Open (also known as the Millennium Estoril Open for sponsorship purposes) was a tennis tournament played on outdoor clay courts. It was the second edition of the Estoril Open, and part of the ATP World Tour 250 series of the 2016 ATP World Tour. The event took place at the Clube de Ténis do Estoril in Cascais, Portugal, from 25 April until 1 May 2016. Unseeded Nicolás Almagro won the singles title.

Singles

 * 🇪🇸 Nicolás Almagro defeated 🇪🇸 Pablo Carreño Busta, 6–7(6–8), 7–6(7–5), 6–3

Doubles

 * 🇺🇸 Eric Butorac / 🇺🇸 Scott Lipsky defeated 🇵🇱 Łukasz Kubot / 🇵🇱 Marcin Matkowski, 6–4, 3–6, [10–8]

Seeds

 * Rankings are as of April 18, 2016.

Other entrants
The following players received wildcards into the singles main draw:
 * Frederico Ferreira Silva
 * Pedro Sousa
 * 🇪🇸 Fernando Verdasco

The following players received entry from the qualifying draw:
 * 🇮🇹 Andrea Arnaboldi
 * 🇨🇦 Steven Diez
 * 🇫🇷 Stéphane Robert
 * 🇸🇪 Elias Ymer

Withdrawals

 * 🇱🇺 Gilles Müller → replaced by 🇪🇸 Daniel Gimeno-Traver
 * 🇪🇸 Tommy Robredo → replaced by 🇩🇪 Benjamin Becker
 * 🇫🇷 Jo-Wilfried Tsonga → replaced by 🇩🇪 Michael Berrer
 * 🇷🇺 Dmitry Tursunov → replaced by 🇧🇷 Rogério Dutra Silva

Seeds

 * Rankings are as of April 18, 2016.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * Felipe Cunha e Silva / Frederico Gil
 * 🇬🇧 Kyle Edmund / Frederico Ferreira Silva

The following pair received entry as alternates:
 * Rui Machado / Pedro Sousa

Withdrawals

 * Before the tournament
 * 🇪🇸 Marc López (abductor injury)