| Jiang Jiayin | |
| Height Ft: | 5 |
| Height In: | 10 |
| Position: | Small forward |
| Birth Date: | 26 January 1995 |
| Birth Place: | Nanjing, Jiangsu, China |
| League: | WCBA |
| Team: | Jiangsu Phoenix |
| Number: | 21 |
| Career Start: | 2013 |
| Years1: | 2013–present |
| Team1: | Jiangsu Phoenix |
Jiang Jiayin (born 26 January 1995) is a Chinese basketball player. She represented China at the 2018 FIBA 3x3 World Cup.