Sun Guangxian (Chinese: 孫光憲; died 968[1][2]), courtesy name Mengwen (孟文), self-styled Baoguangzi (葆光子), was an official of the Chinese Five Dynasties and Ten Kingdoms period Jingnan state (Nanping). He became the official who was most in charge of policies and governance after the retirement of Liang Zhen during the rule of Jingnan's second ruler Gao Conghui, and subsequently served in that role under Gao Conghui, his sons Gao Baorong and Gao Baoxu, and his grandson Gao Jichong.