Ennio Guarnieri (Rome, 12 October 1930) is an Italian cinematographer.
Born in Rome, Guarnieri abandoned his studies and worked as an assistant cinematographer of Anchise Brizzi from 1949 to 1956. He debuted as director of photography in 1962 with I giorni contati by Elio Petri. In the late sixties, for his ability to portray actresses, Guarnieri became a trusted cinematographer for stars such as Virna Lisi, Sylva Koscina and Tina Aumont, for which he made extensive use of soft focus, backlight and scrims. His work in Mauro Bolognini's L'assoluto naturale (1969), starring Sylva Koscina, was referred as "one of the cornerstones of Italian photography in the sixties".
The first collaboration with Franco Zeffirelli, Brother Sun, Sister Moon (1972), earned him his first Silver Ribbon for best cinematography; he was awarded with a second Silver Ribbon ten years later again with a film directed by Zeffirelli, La traviata.
From the eighties onward Guarnieri focused on television and advertising.
- Stefano Masi. Dizionario mondiale dei direttori della fotografia, Vol. A-K. Le Mani-Microart'S, 2009. pp. 372–373.
- Enrico Lancia. I premi del cinema. Gremese Editore, 1998.