In all the world, Джакомо (Giacomo 
, Джакомо 
) is a widespread boy's forename. The forename Джакомо is habitual in San Marino, where it is a widespread masculine name, Italy, where it is a common male name, and Switzerland, where it is quite a rare masculine name. In absolute terms, this name is the most popular in Italy, Germany, and the United States. Much less frequently, Джакомо is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Giacomo | Germany, Italy, Brazil, United States, France |
| Джакомо | Ukraine, Russia |
Diego, Djakomo, Dzhakomo, Džeimss, Giacomino, Iacobus, Iacopo, Jaakko, Jacb, Jacco, Jaco, Jacob, Jacobo, Jacobus, Jacopo, Jacques, Jacó, Jaime, Jakez, Jakob, Jakov, Jakow, Jakub, Jakubs, Jakób, Jakúb, James, Jaume, Jim, Jockel, Jokūbas, Santiago, Santjago, Séamus, Yacob, Yakiv, Yakov, Yakub, Yakup, Yaqoob, Yaqoub, Yaqub, Ζακ, Ιάκωβος, Τζιμ, Джейкоб, Джеймс, Джекобс, Джим, Джым,
Джакомо is also a name for the fictitious and mythical characters: Jackie Aprile, Sr. , the fictional character from The Sopranos; Jackie Aprile , the fictional character from The Sopranos; Giacomo Rocca ; Giacomo , the operatic character in the opera Fra Diavolo and Giacomo , the operatic character in the opera Giovanna d'Arco by Giuseppe Verdi; Shepherd and father of Giovanna, among other works.