Okja (Korean: 옥자, Korean pronunciation: [ok.dza]) is a 2017 science-fantasy action-adventure film directed by Bong Joon-ho with a screenplay by Bong and Jon Ronson from a story by Bong. The film is about a young girl who raised a genetically modified "super pig" (the titular Okja). When Okja is taken to the United States by a meat industry corporation, the girl goes on a mission to rescue Okja from mistreatment and slaughter. An international co-production of South Korea and the United States, it stars an ensemble cast headed by child actor Ahn Seo-hyun, along with Byun Hee-bong, Yoon Je-moon, Choi Woo-shik, Tilda Swinton, Paul Dano, Steven Yeun, Lily Collins, Shirley Henderson, Daniel Henshall, Devon Bostick, Giancarlo Esposito, and Jake Gyllenhaal.

The film competed for the Palme d'Or in the main competition section at the 2017 Cannes Film Festival. It was released on Netflix on June 28, 2017. The film received positive reviews from critics.