2003 Estoril Open – Men's doubles

Karsten Braasch and Andrei Olhovskiy were the defending champions but did not compete that year.

Mahesh Bhupathi and Max Mirnyi won in the final 6–1, 6–2 against Lucas Arnold and Mariano Hood.

Seeds

 * 1) 🇮🇳 Mahesh Bhupathi / 🇧🇾 Max Mirnyi (champions)
 * 2) 🇨🇿 Martin Damm / 🇨🇿 Cyril Suk (quarterfinals)
 * 3) 🇨🇿 Tomáš Cibulec / 🇨🇿 Pavel Vízner (first round)
 * 4) 🇦🇺 Wayne Arthurs / 🇺🇸 Donald Johnson (first round)