Xianzi () is a common posthumous name of Eastern Zhou feudal lords. It may refer to: Fan Xianzi Han Xianzi Wei Xianzi Zhao Xianzi Zhonghang Xianzi

Other uses Xianzi (monk) Zhang Xianzi, Chinese singer Xianzi (activist), Zhou Xiaoxuan, participant in China's #MeToo movement Xianzi (musical instrument)