Colonel Piero D'Inzeo (4 March 1923 – 13 February 2014) was an Italian show jumping rider, winner of six medals at the Olympic Games, and an officer in the Italian cavalry. He was born in Rome.
With his younger brother Raimondo D'Inzeo, also an officer in the military (but of the Carabinieri), in the international arena they have been called the "invincible brothers" of Italian equestrianism. They participated in numerous competitions in Italy and abroad. At the Olympic Games in 1960 in Rome, Raimondo won the gold medal and Piero the silver medal in the Grand Prix jump obstacles. They were the first athletes to compete in eight Olympic games, consistently from 1948 to 1976. Piero won 2 silver and 4 bronze Olympic medals. He also won the European Championship title in 1959.
