Wang Bo (王播) (759 – February 15, 830), courtesy name Mingyang (明敭), formally Duke Jing of Taiyuan (太原敬公), was an official of the Chinese Tang Dynasty, serving as a chancellor during the reigns of Emperor Muzong and Emperor Wenzong. In traditional histories, he was credited with his fight against corruption and administrative abilities early in his career, but was blamed for his later corruption, engagement in political intrigue, and extraction of wealth from the people.
Wang Bo was born in 759, during the reign of Emperor Suzong. His ancestors were from Taiyuan, but as his father Wang Shu (王恕) served as an officer in charge of army supplies at Yang Prefecture (揚州, in modern Yangzhou, Jiangsu), the family settled in Yang Prefecture. Wang Bo had at least two younger brothers, Wang Qi (王起) and Wang Yan (王炎).
During the middle of the Zhenyuan era (785-805) of Emperor Suzong's grandson Emperor Dezong, Wang Bo and his brothers Wang Yan and Wang Qi all became well-known, and they all passed the imperial examinations. Wang Bo and Wang Qi further passed a special examination for the good and righteous. Wang Bo was made an assistant at Jixian Institute (集賢院), and thereafter became an imperial censor, initially with the title Jiancha Yushi (監察御史) then Dianzhong Shiyushi (殿中侍御史). Late in the Zhenyuan era, one of Emperor Dezong's favorite officials, Li Shi (李實) the mayor of Jingzhao Municipality (京兆, i.e., the region of the capital Chang'an), was arrogant, and once, when he encountered Wang on the street, instead of yielding to the censor as was appropriate under the regulations (due to the censors' having the responsibility of examining the officials' deeds), he refused to. Wang wrote a formal letter rebuking him. Li, in anger, recommended to Emperor Dezong that Wang be made the magistrate of Sanyuan County (三原, in modern Xianyang, Shaanxi), which was part of Jingzhao, in order to get a chance to humiliate Wang. Instead of reacting angrily, Wang went to the Jingzhao Municipality government to thank Li for the recommendation as was appropriate under the regulations. It was said that once Wang started his service as the magistrate of Sanyuan, he governed the county well, and the powerful clans of the county did not dare to resist the law. At the end of the year, he was rated the highest among the county magistrates of Jingzhao. Li was impressed and further recommended him for promotion. Emperor Dezong was about to promote him when his mother died, and he left governmental service to observe a mourning period for her.