Xin may refer to:
- Xin Dynasty (新朝), which ruled China from 8-23 AD
- Xin (comics), a comic book by Kevin Lau, or its main character
- Xinjiang, abbreviated as Xin, the northwestern region of China, of Uyghur Chinese
- Xin County, in Henan, China
Xin is also a Chinese-Korean family name:
- Xin (surname), surname of Chinese/Xinjiang people
- Empress Xin (辛皇后), wife of the Chinese state Former Liang's ruler Zhang Zuo
- Xin Qiji (辛棄疾) (1140–1207), a Chinese poet during the Southern Song dynasty
- Shin Ae-ra(辛愛羅), Korean actress