Shusun Zi 叔孫茲 (died 644 BCE), posthumous title Shusun Daibo 叔孫戴伯, was a high minister in the state of Lu 魯 during the Spring and Autumn period 春秋 (770-5th cent. BCE). He is also known as Ducal Grandson Zi (Gongsun Zi 公孫茲) or Daibo Zi 戴伯茲.
He was the son of Xishu Ya 僖叔牙 and grandson of Duke Huan 魯桓公 (r. 712-694), and served his nephew, Duke Xi 魯僖公 (also written 魯釐公, r. 660-627), as counsellor-in-chief.
Shusun Daibo took commanded the troops of Lu in the campaign of the states Qi 齊, Song 宋, Wei 衛, Zheng 鄭, Xu 許 and Cao 曹 against Chen 陳 in 656. The allies forced the duke of Chen to release grand master (dafu 大夫) Yuan Taotu 轅濤涂. The descendants of Shusun Zi constituted the house of Shusun 叔孫, one of the powerful Three Huan families 三桓 that deeply influenced the politics of the stae of Lu.