Machine Girl is an American electronic music project created in 2012 by Matt Stephenson on Long Island, New York. In 2015, the project became a duo, with Stephenson recruiting percussionist Sean Kelly to play live drums, and in 2024 Lucy Caputi also joined the group as a guitarist. The project derives its name from the 2008 Japanese film The Machine Girl and has occasionally incorporated samples from the film into their work, notably in their 2014 debut studio album, WLFGRL. Machine Girl, as described by its creator, is a genre-defying musical project characterized as "fucked-up electronic punk".