World Hard Court Championships were an annual major tennis tournament sanctioned by the International Lawn Tennis Federation, held from 1912 to 1923. It was principally held in Paris, on clay courts of the Stade Français in the Paris suburb of Saint-Cloud, with one exception when they were held at the Royal Leopold Club in Brussels, Belgium, in 1922.

Tennis is a racket sport that is played either individually against a single opponent (singles) or between two teams of two players each (doubles). Each player uses a tennis racket that is strung with cord to strike a hollow rubber ball covered with felt over or around a net and into the opponent's court. The object of the game is to manoeuvre the ball in such a way that the opponent is not able to play a valid return. The player who is unable to return the ball validly will not gain a point, while the opposite player will.