Paul Xiao Zejiang (Chinese: 萧泽江; born 30 October 1967) was a Chinese Catholic priest and Bishop of the Roman Catholic Archdiocese of Guiyang since 2014.

In October 2006, the Holy See announced the decision to appoint Paul Xiao Zejiang as archbishop of the Roman Catholic Archdiocese of Guiyang.

He received his episcopal ordination with the papal mandate on September 8, 2007.

The Chinese government also recognized him as the Bishop of the Diocese of Guizhou, a diocese set up illegally by the Chinese government in 1999, which corresponds to the whole of Guizhou province.

On September 8, 2014, after the retirement of his predecessor, he became Archbishop Metropolitan of Guiyang.