Zhang Ling (34–156), style name Fuhan, is an Eastern Han Dynasty Taoist hermit who founded the Way of the Celestial Masters sect of Taoism, which is also known as the Way of the Five Pecks of Rice.

He is also known as Zhang Daoling, Celestial Master Zhang, Ancestral Celestial Master or Zhengyi Zhenren to Taoists.

Zhang is sometimes pictured riding on a tiger.

In some Taoist sects, Zhang, along with Ge Xuan, Xu Xun and Sa Shoujian, is one of the "Four Celestial Masters".