Namesakes
Italian Presidents and Prime Ministers:
1 prime minister
(prime minister) Aldo Moro 1963-1968; 1974-1976 
Notable Actors and Entertainers:
1 actor
Aldo Ray 1926-1991
Notable Athletes:
2 soccer
(soccer) Aldo Leão Ramírez 1981-
(soccer) Aldo de Nigris 1983-
Olympic Medalists:
2 bronze, 1 gold, 1 gold/silver/bronze
(gold) Aldo Ghira 1948 water polo
(bronze) Aldo Eminente 1952 swimming - 4x200 m freestyle relay
(bronze) Oscar Moglia (middle name Aldo) 1956 basketball
(gold/silver/bronze) Aldo Montano 2004; 2008; 2012 fencing
Other Notables:
1 person
Aldus Manutius (a.k.a. Aldo) c. 1449-1515 printer
Saints:
1 saint
Saint Aldo of Hasnon ?-7xx