Zhangsun was a Chinese compound surname often of Xianbei origin. People with this surname included:
- Zhangsun Sheng (552âÂÂ609), diplomat and general of Sui dynasty
- Zhangsun Shunde (565âÂÂ631), general of the Tang dynasty
- Empress Zhangsun (601âÂÂ636), first empress consort of the Tang dynasty
- Zhangsun Wuji (died 659), prime minister of the Tang dynasty and Empress Zhangsun's brother