Nanni Loy (born Giovanni Loi; 23 October 1925 – 21 August 1995) was an Italian film, theatre and TV director.

Loy was born in Cagliari, Sardinia: his father was Guglielmo Loy-Donà, a lawyer issue from a distinguished Sardinian-Venetian family, and his mother was the noblewoman Donna Anna Sanjust of the Marquesses of Neoneli.

[circular reference] He became famous for introducing in Italy the candid camera with his show Specchio segreto (Secret mirror) in 1965.

The star, Alberto Sordi, won the Silver Bear for Best Actor award.

[4] He specialized in comedy films such as Padre di famiglia but he also shot film dealing with social themes (Detenuto in attesa di giudizio and Sistemo l'America e torno).