Aldo Eminente was born in Paris XVIe. His first major international event was the 1952 Helsinki Olympics, where he was seventh in the 100 metres freestyle and won bronze in the 4x200 metres freestyle relay alongside Jo Bernardo, Alex Jany, and Jean Boiteux. The following year, he helped set a world record in the 4x100 medley relay, with a time of 4:31.5, with Pierre Joly dit Dumesnil and the non-Olympians Maurice Violas and Julian Arène. He then won silver in the 4x200 metres freestyle relay with Boiteux, Gilbert Bozon, and Guy Montserret.
Eminente’s greatest success came at the 1955 Mediterranean Games, where he took gold in both of his relay events, as well as the individual 100 metres freestyle competition. His next stop was the 1956 Melbourne Olympics, where he was eighth in the 100 metres freestyle and ninth with the French 4x200 metres freestyle relay, with Jany, Boiteux, and Jacques Collignon. His last major international medal came at the 1959 Mediterranean Games, where he took silver with the French 4x100 metres medley relay squad. Domestically, he won the 100 metres freestyle event every year from 1953 through 1958 and later found considerable success at the master’s level. His son Eric won several French championships in the 1970s.