Jean Ravier and his twin brother Pierre Ravier, born in Paris on October 20, 1933 to Olympe and Albert Ravier, are French climbers and Pyrenees climbers. They have an older sister and will be followed by four other sisters and two brothers.

In 1936, the family moved to Bordeaux where Albert took over a business selling spare parts for automobiles during the Somme. In 1940, mobilized, he was taken prisoner and remained so for a year. Olympe and her children retreated to Tuzaguet, in the Hautes-Pyrénées.