Guangyang Commandery (Chinese: 廣陽郡), at times also Guangyang Principality (Chinese: 廣陽國), was a territory of early imperial China located in modern Hebei and Beijing.

Guangyang Commandery was first established during Qin Shi Huang's reign. In early Han dynasty, its land became the fief of the Princes of Yan The commandery was restored in 80 BC, after Prince Dan (劉旦) of Yan's rebellion was suppressed. In 73 BC, Liu Jian, a son of Liu Dan, was granted the title Prince of Guangyang, and the commandery became his fief.

Four princes held the title Prince of Guangyang:^[1]

• Liu Jian (劉建), Prince Qing (頃) of Guangyang, 73–45 BC;
• Liu Shun (劉舜), Prince Mu (穆) of Guangyang, 45–23 BC;
• Liu Huang (劉璜), Prince Si (思) of Guangyang, 23–3 BC;
• Liu Jia (劉嘉), 3 BC – 9 AD, deposed after the establishment of Xin dynasty.

The principality had a population of 70,658 in 2 AD, in 20,740 households. It consisted of four counties: Ji (薊), Fangcheng (方城), Guangyang (廣陽) and Yinxiang (陰鄉).^[2]

The commandery was expanded, and administered five counties: Ji, Guangyang, Changping (昌平, formerly part of Shanggu Commandery), Jundu (軍都, formerly part of Shanggu) and Anci (安次, formerly part of Bohai Commandery). The seat, Ji, was also the seat of You Province. In 140 AD, the population was 280,600, in 44,550 households.^[3] With the beginning of the Three Kingdoms period, the commandery was abolished and merged into the Principality of Yan (燕國).^[4]

Northern Wei established a commandery of the same name in 441 with three counties, Yanle (燕樂), Guangxing (廣興) and Fangcheng. The seat was Yanle, in present-day Longhua County, Hebei. The population was 8,919, and the households numbered 2,800.^[5] The commandery was abolished in Northern Qi.^[6]

• History of Beijing
• Jicheng (Beijing)

v t e Provinces and commanderies of the Han dynasty (140 AD)
Sili	Henan Henei Hedong Hongnong Jingzhao Zuopingyi Youfufeng	Han provinces and commanderies in 219 CE
Yu Province	Yingchuan Runan Liang Pei Chen Lu
Ji Province	Wei Julu Changshan Zhongshan Xindu Hejian Qinghe Handan Bohai
Yan Province	Chenliu Dong Dongping Rencheng Taishan Jibei Shanyang Jiyin
Xu Province	Donghai Langya Pengcheng Guangling Linhuai
Qing Province	Jinan Pingyuan Le'an Beihai Donglai Qi
Jing Province	Nanyang Nan Jiangxia Lingling Guiyang Wuling Changsha
Yang Province	Jiujiang Danyang Lujiang Kuaiji Wu Yuzhang
Yi Province	Hanzhong Ba Guanghan Shu Jianwei Zangke Yuexi Yizhou Yongchang
Liang Province	Longxi Hanyang Wudu Jincheng Anding Wuwei Zhangye Jiuquan Dunhuang
Bing Province	Shangdang Taiyuan Xihe Yunzhong Dingxiang Yanmen
Shuofang Province	Shuofang Wuyuan Shang Xihe Beidi
You Province	Zhuo Guangyang Dai Shanggu Yuyang Youbeiping Liaoxi Liaodong Xuantu Lelang
Jiaozhi Province	Nanhai Cangwu Yulin Hepu Jiaozhi Jiuzhen Rinan
Full list (202 BC – 220 AD)