| Full Name | Winnie Zhang |
| Chinese Name | 张紫宁 |
| Pinyin | Zhāng Zǐ Níng |
| Date of Birth | 9 March, 1996 |
| Place of Birth | Chengdu, Sichuan, China |
| Origin | China |
| Ethnicity | Han Chinese |
| Height | 5' 5" (164 cm) |
| Occupation | Actress, Singer |
| Other Names | Zhang Zining, Zhang Zi-Ning |
| Related Group | Rocket Girls 101, Mera |
| Alma Mater | Communication University of China, Beijing, China |
| Debut Date | 2017 |