Zhu Xin (; born February 26, 1993), also known as Rosie Zhu Xin is a Chinese model and beauty pageant titleholder who was crowned Miss Universe China 2019. She represented China at the Miss Universe 2019 pageant.
Xin first competed in Miss China World 2017 and she was placed as a finalist.
Officials of Miss Intercontinental China allowed Xin to participate in the Miss Intercontinental China 2018 pageant. She was placed as a Top 10 finalist.
Xin represented Hebei at the Miss Universe China 2018 pageant held at Shenzhen and was crowned by her predecessor, Meisu Qin on January 14, 2019.
Xin represented China at the Miss Universe 2019 pageant and failed to place.