Xiaowu is a given name. Notable people with the name include:
Emperor Xiaowu of Jin (362–396), an emperor of the Eastern Jin Dynasty (265–420) in China
Emperor Xiaowu of Liu Song (430-464), an emperor of the Chinese dynasty Liu Song
Emperor Xiaowu of Northern Wei (510–535), an emperor of the Chinese/Xianbei dynasty Northern Wei
Empress Gao (Xiaowu), empress of the Chinese/Xianbei dynasty Northern Wei: her husband was Emperor Xiaowu
Ruan Xiaowu, fictional character in the Water Margin, one of the Four Great Classical Novels of Chinese literature
