1999 Estoril Open – Men's doubles

Donald Johnson and Francisco Montana were the defending champions, but did not participate together this year. Johnson partnered Tomás Carbonell, successfully defending his title. Montana partnered Chris Haggard, losing in the semifinals.

Carbonell and Johnson won in the final 6–3, 2–6, 6–1, against Jiří Novák and David Rikl.

Seeds
• # 🇨🇿 Jiří Novák / 🇨🇿 David Rikl (final)

• # Chris Haggard / 🇺🇸 Francisco Montana (semifinals)

• #🇪🇸 Tomás Carbonell / 🇺🇸 Donald Johnson (champions)

• #🇦🇺 David Macpherson / 🇸🇪 Peter Nyborg (semifinals)