His maternal grandfather was film director Armando Bó, his uncle is actor Víctor Bó and his cousin is the fellow screenwriter Armando Bo, whom he won the Oscar with. Giacobone is in a relationship with a transwoman named Mariana.
- Gettell, Oliver (February 22, 2015). "Oscars 2015: 'Birdman' quartet wins for original screenplay". latimes.com. Retrieved February 23, 2015.
- "Armando Bó y Nicolás Giacobone, los otros argentinos que pelean por un Oscar" [Armando Bó and Nicolás Giacobone, the other argentines that fight for an Oscar] (in Spanish). Infobae. February 22, 2015. Retrieved February 26, 2015.
The screenwriters are cousins to each other and grandsons of legendary Argentine director Armando Bó
- "Nicolás Giacobone: "Con Mariana somos felices, lo tomamos con naturalidad"" [Nicolás Giacobone: "With Mariana we are happy, we take it naturally"] (in Spanish). Primicias YA. February 24, 2015. Retrieved February 25, 2015.
Is my partner, is my woman and is so