The 2005 French Open was the 109th edition of the tournament. On the men's side, Rafael Nadal, seeded fourth at his first French Open, was a strong favorite to win the singles title after winning the Monte Carlo and Rome Masters. Guillermo Coria, the defending finalist and 2005 runner-up to Nadal in both Monaco and Rome, called Nadal the best clay-court player in the world prior to the tournament. After defeating top seed Roger Federer in the semifinals, Nadal defeated Mariano Puerta to claim his first French Open title, and the first of four won consecutively from 2005 until 2008. Nadal would go on to win the tournament a record 14 times. In the women's draw, Justine Henin-Hardenne won her second French Open title, defeating 2000 champion Mary Pierce in the final in just 62 minutes. 2005 marked the first of three consecutive years in which Henin would win the women's singles title. Gastón Gaudio and Anastasia Myskina were unsuccessful in defending their 2004 titles, Gaudio losing in the fourth round and Myskina being upset in the first round. This tournament was also notable for the rise of future French Open champion Ana Ivanovic, who upset the third seed Amélie Mauresmo in the third round, before going on to defeat another future champion in Francesca Schiavone on her way to her first major quarterfinal appearance in just her second major tournament.

Points distribution

Below are the tables with the point distribution for each discipline of the tournament.

Senior points

Seniors

Men's singles

🇪🇸 Rafael Nadal defeated 🇦🇷 Mariano Puerta, 6–7(6–8), 6–3, 6–1, 7–5

Women's singles

🇧🇪 Justine Henin-Hardenne defeated 🇫🇷 Mary Pierce, 6–1, 6–1

Men's doubles

🇸🇪 Jonas Björkman / 🇧🇾 Max Mirnyi defeated 🇺🇸 Mike Bryan / 🇺🇸 Bob Bryan, 2–6, 6–1, 6–4

Women's doubles

🇪🇸 Virginia Ruano Pascual / 🇦🇷** Paola Suárez** defeated Cara Black / Liezel Huber, 4–6, 6–3, 6–3

Mixed doubles

🇸🇰 Daniela Hantuchová / 🇫🇷 Fabrice Santoro defeated 🇺🇸 Martina Navratilova / 🇮🇳 Leander Paes, 3–6, 6–3, 6–2

Juniors

Boys' singles

🇭🇷 Marin Čilić defeated Antal van der Duim, 6–3, 6–1

Girls' singles

🇭🇺 Ágnes Szávay defeated 🇷🇴 Raluca-Ioana Olaru, 6–2, 6–1

Boys' doubles

🇦🇷 Emiliano Massa / 🇦🇷 Leonardo Mayer defeated 🇺🇦 Sergei Bubka / 🇫🇷 Jérémy Chardy, 2–6, 6–3, 6–4

Girls' doubles

🇧🇾 Victoria Azarenka / 🇭🇺 Ágnes Szávay defeated 🇷🇴 Raluca-Ioana Olaru / 🇰🇿 Amina Rakhim, 4–6, 6–4, 6–0

Singles seeds

The following are the seeded players and notable players who withdrew from the event. Seedings are based on ATP and WTA rankings as of 16 May 2005. Rankings and points are as of before 23 May 2005.

Men's singles

† The player did not qualify the tournament in 2004. Accordingly, this was the points from the 18th best result are deducted instead. The following players would have been seeded, but they withdrew from the event.

Women's singles

Wildcard entries

Below are the lists of the wildcard awardees entering in the main draws.

Men's singles wildcard entries

Women's singles wildcard entries

Men's doubles wildcard entries

Women's doubles wildcard entries

Mixed doubles wildcard entries

Qualifier entries

Men's qualifiers entries

The following players received entry into a lucky loser spot:

Women's qualifiers entries

The following player received entry into a lucky loser spot:

Withdrawals

Official videogame

An official videogame for the tournament, Roland Garros 2005: Powered by Smash Court Tennis, was launched exclusively for the PlayStation 2 platform. The game, which is an updated version of Smash Court Tennis Pro Tournament 2, featured 15 licensed players and 4 official courts of the tournament: Court Philippe Chatrier, Court Suzanne Lenglen, Court 1 and Court 2.