The 1955 French Championships (now known as the French Open) was a tennis tournament that took place on the outdoor clay courts at the Stade Roland-Garros in Paris, France. The tournament ran from 24 May until 4 June. It was the 59th staging of the French Championships, and the second Grand Slam tennis event of 1955. Tony Trabert and Angela Mortimer won the singles titles.

Finals

Men's singles

🇺🇸 Tony Trabert defeated 🇸🇪 Sven Davidson 2–6, 6–1, 6–4, 6–2

Women's singles

🇬🇧 Angela Mortimer defeated 🇺🇸 Dorothy Knode 2–6, 7–5, 10–8

Men's doubles

🇺🇸 Vic Seixas / 🇺🇸 Tony Trabert defeated 🇮🇹 Nicola Pietrangeli / 🇮🇹 Orlando Sirola 6–1, 4–6, 6–2, 6–4

Women's doubles

🇺🇸 Beverly Baker Fleitz / 🇺🇸 Darlene Hard defeated 🇬🇧 Shirley Bloomer / 🇬🇧 Patricia Ward 7–5, 6–8, 13–11

Mixed doubles

🇺🇸 Darlene Hard / Gordon Forbes defeated 🇦🇺 Jenny Staley / Luis Ayala 5–7, 6–1, 6–2