Mattie Do is a Laotian American film director. Do was born in Los Angeles, California, to immigrant parents who left Laos during the communist revolution. Do returned to Vientiane in 2010 with her husband to take care of her retired father. She trained originally as a make-up artist and worked on film productions in Europe and America before becoming a consultant to the oldest film company in Laos, Lao Art Media, upon her return in 2010.

She is Laos's first and only female film director and the first horror film director from Laos. Do's second feature film, Dearest Sister (2016), (Lao: ນ້ອງຮັກ) was chosen to attend the 2014 Cannes Film Festival as part of the La Fabrique des Cinémas du monde program and was selected as the Laotian entry for the Best Foreign Language Film at the 90th Academy Awards, the first time that Laos submitted a film for consideration in this category. It was screened at more than 20 film festivals and was selected by Laos as its first Oscars submission for Best Foreign Language Film. Description above from the Wikipedia article Mattie Do, licensed under CC-BY-SA, full list of contributors on Wikipedia.