Guy Lefrant (1923–1993) was a French equestrian. He won a silver medal in individual eventing at the 1952 Summer Olympics in Helsinki. He won a bronze medal in team eventing at the 1960 Summer Olympics in Rome, together with Jack le Goff and Jéhan Le Roy.
Pierre Louis Marie Bertran de Balanda (28 September 1887 – 28 March 1946) was a French horse rider who competed in the 1928 Summer Olympics.
He was born in Toulouse and died in Marseille.
In 1928, he and his horse Papillon won the silver medal in the individual jumping competition. They also finished fourth as part of the French jumping team in the team jumping competition.