Notable Actors and Entertainers: 2 actors
Jack Scalia (a.k.a. Giacomo)   1950-  
Giacomo Gianniotti   1989-  
Notable Musicians: 1 composer
Giacomo Puccini   1858-1924  
Notable Writers: 1 author, 1 poet
Giacomo Casanova   1725-1798  
Giacomo Leopardi   1798-1837  
Olympic Medalists: 2 silver
(silver) Giacomo Galanda   2004   basketball  
(silver) Giacomo Pastorino   2012   water polo  
Saints: 11 blessed, 1 saint
Blessed Giacomo of Bevagna   1220-1301  
Blessed Jacobus of Voragine (a.k.a. Giacomo)   1228-1298  
Blessed Giacomo Salomoni   1231-1314  
Blessed Giacomo of Viterbo   ?-1308  
Blessed Giacomo Benefatti   ?-1332  
Blessed Giacomo Oldo   1364-1404  
Saint Giacomo of the March   1394-1476  
Blessed Jakob Griesinger of Ulm (a.k.a. Giacomo)   1407-1491  
Blessed Giacomo Bertoni   1444-1483  
Blessed Giacomo of Bitetto   ?-1490  
Blessed Giacomo Cusmano   1834-1888  
Blessed Giacomo Alberione   1884-1971  
Shakespearian Characters: 1 character
Iachimo (a.k.a. Giacomo)   Cymbeline