Rafael Nadal defeated Juan Carlos Ferrero in the final, 6–1, 7–6(7–4), 6–3 to win the singles tennis title at the 2005 Barcelona Open. With the win, Nadal entered the top 10 in singles of the ATP rankings for the first time, debuting at No. 7. Tommy Robredo was the defending champion, but lost to Alberto Martín in the second round. This tournament was the first professional appearance of future world No. 1, two-time Olympic gold medalist, and three-time major champion Andy Murray. He lost to Jan Hernych in the first round.

Seeds

• # 🇷🇺 Marat Safin (second round) • # 🇦🇷 Gastón Gaudio (quarterfinals) • # 🇪🇸 Carlos Moyà (third round) • # 🇦🇷 Guillermo Coria (third round) • # 🇦🇷 Guillermo Cañas (third round) • # 🇪🇸 Tommy Robredo (first round) • # 🇷🇺 Nikolay Davydenko (semifinals) • # 🇪🇸 Rafael Nadal (champion) • # 🇸🇪 Thomas Johansson (third round) • # 🇸🇰 Dominik Hrbatý (third round) • # 🇨🇿 Radek Štěpánek (semifinals) • # 🇪🇸 Feliciano López (second round) • # 🇪🇸 David Ferrer (third round) • # 🇦🇷 Juan Ignacio Chela (second round) • # 🇹🇭 Paradorn Srichaphan (second round) • # 🇷🇺 Igor Andreev (first round)

Draw

Key

Finals

Earlier rounds

Section 1

Section 2

Section 3

Section 4

Qualifying Draw