Jung Yoo-jin (; born February 19, 1989), also known as Eugene Jung, is a South Korean actress and model.
Jung started her career as a model in her teens under YG KPlus. She has walked runways for multiple luxury fashion brands including Louis Vuitton, Fendi, Chanel and DKNY.
She is known for her roles in Korean dramas, such as Heard It Through the Grapevine (2015), Moorim School (2016), W (2016) and Snowdrop (2021-2022).
In February 2018, Jung signed with new management agency FNC Entertainment. On March 3, 2022, Jung's contract with FNC Entertainment had expired.