2005 Monte Carlo Masters – Singles

Rafael Nadal defeated the defending champion Guillermo Coria in the final, 6–3, 6–1, 0–6, 7–5 to win the singles tennis title at the 2005 Monte Carlo Masters. It was his first Masters title, and the first of eleven titles at the Monte-Carlo Masters. His first round victory against Gaël Monfils marked the beginning of a record 46 consecutive victories at the tournament; he would not lose again until the 2013 final. Nadal became the youngest Masters champion since Michael Chang at the 1990 Canadian Open.

Seeds
• # Roger Federer (quarterfinals)

• # 🇷🇺 Marat Safin (third round)

• # 🇬🇧 Tim Henman (first round)

• # 🇦🇷 Gastón Gaudio (quarterfinals)

• # 🇪🇸 Carlos Moyá (first round)

• # 🇦🇷 Guillermo Coria (final)

• # 🇸🇪 Joachim Johansson (first round)

• # Ivan Ljubičić (first round)

• # 🇦🇷 Guillermo Cañas (second round)

• # 🇷🇺 Nikolay Davydenko (third round)

• # 🇪🇸 Rafael Nadal (champion)

• # 🇸🇪 Thomas Johansson (first round)

• # Mario Ančić (second round)

• # 🇸🇰 Dominik Hrbatý (first round)

• # 🇨🇿 Radek Štěpánek (second round)

• # 🇨🇿 Jiří Novák (second round)