Bai Xiaoman was a 19th-century Chinese Catholic layman from Guizhou who was martyred in Guangxi. Born into a poor family, he worked as a domestic servant before converting to Christianity in 1855. Following his baptism, he became a follower of the French missionary Augustus Chapdelaine. His brief time as a Christian ended when he stood up for the missionary during a period of intense civil unrest and government crackdown, leading to his arrest and eventual execution.