Costanza Quatriglio (born 6 January 1973) is an Italian film director, documentarist and screenwriter.

Born in Palermo, Quatriglio got a degree in law at the Palermo University and later enrolled at the Centro Sperimentale di Cinematografia, graduating in direction.

[1] After directing some shorts and documentaries, she made her feature film debut with The Island, which premiered at the 2003 Cannes Film Festival in the Directors' Fortnight section.

[5] Her documentary My Human Heart was screened as Special Event at the 2009 Locarno Film Festival.

[6] In 2015, she won a second Nastro d'Argento for best documentary film with Triangle.