Zhangsun Shunde (Chinese: 长孙顺德), titled Duke of Pi, was a general and officer in the early Tang dynasty.

[1] Zhangsun Shunde served as a lieutenant commander in the Right Guard during Emperor Yang of Sui's reign.

In 612, Emperor Yang launched a massive campaign against Goguryeo, and Zhangsun Shunde was drafted as a low-ranked commander.

Zhangsun Shunde refused to go, and thus fled to Taiyuan and secretly became a subordinate to Li Yuan, who later rebelled against Sui in 617, and established the Tang dynasty in 618.

[2] During the rebellion, Zhangsun Shunde made major contributions, including breaking through Huoyi and Linfen, defeating the Sui general Qutu Tong, and occupying Shaan County.