XXY is a 2007 Argentine film written and directed by Lucía Puenzo. The film stars Ricardo Darín, Valeria Bertuccelli, Inés Efron and Martín Piroyansky. It tells the story of a 15-year-old intersex person, the way her family copes with her condition and the ultimate decision that she must eventually make as she explores her sexuality.

XXY has received widespread critical acclaim, winning the Critics’ Week grand prize at the 2007 Cannes film festival, as well as the ACID/CCAS Support Award. It was nominated for eight awards at the 2008 Argentine Film Critics Association Awards, winning three of these including Best Film, and was nominated or won awards at a number of other foreign film festivals. It was chosen to close the 2008 Melbourne Queer Film Festival. It is distributed within the UK by Peccadillo Pictures, it had a short run theatrical release before being released onto DVD.

The film’s title is a reference to Klinefelter’s syndrome, also known as XXY syndrome, a condition in which males have an extra X sex chromosome. However, the main character does not display Klinefelter’s syndrome.