Jianyi may refer to:
Jianyi, Liaoning (建一), a town in Dashiqiao, Liaoning, China
Historical eras Jianyi (建義, 385–388), era name used by Qifu Guoren, ruler of Western Qin Jianyi (建義, 528), era name used by Emperor Xiaozhuang of Northern Wei
See also Jian Yi, Chinese filmmaker