1966 French Championships
Date	23 May – 5 June 1966
Edition	65
Category	36th Grand Slam (ITF)
Surface	Clay
Location	Paris (XVIe), France
Venue	Stade Roland Garros
Champions
Men's singles
Tony Roche[1]
Women's singles
Ann Jones[2]
Men's doubles
Clark Graebner / Dennis Ralston
Women's doubles
Margaret Smith / Judy Tegart
Mixed doubles
Annette Van Zyl / Frew McMillan
← 1965 · French Championships · 1967 →

The 1966 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 23 May until 5 June. It was the 70th staging of the French Championships, and the second Grand Slam tennis event of 1966. Tony Roche and Ann Jones won the singles titles.

Finals

Men's singles

Tony Roche defeated István Gulyás 6–1, 6–4, 7–5

Women's singles

Ann Jones defeated Nancy Richey 6–3, 6–1

Men's doubles

Clark Graebner / Dennis Ralston defeated Ilie Năstase / Ion Țiriac 6–3, 6–3, 6–0

Women's doubles

Margaret Smith / Judy Tegart defeated Jill Blackman / Fay Toyne 4–6, 6–1, 6–1

Mixed doubles

Annette Van Zyl / Frew McMillan defeated Ann Jones / Clark Graebner 1–6, 6–3, 6–2