申阳（？ - ？），项羽十八诸侯之河南王。瑕丘（今山东省兖州市）人，秦末将领。

秦末起义时，为赵国将领，封瑕丘侯，本来是张耳的宠臣，项羽钜鹿之役后先攻克河南洛阳，迎接项羽。灭秦后，项羽分韩国为河南国，封申阳为河南王，建都洛阳。汉二年（前205年）十一月，申阳投降汉王刘邦，其地成为河南郡。

Shen Yang was the ruler of the Kingdom of Henan of the Eighteen Kingdoms during the Chu–Han Contention, an interregnum between the Qin and Hàn dynasties of China.

A native of Xiaqiu (; present-day Yanzhou District, Jining, Shandong), Shen Yang was originally a subordinate of Zhang Er, the chancellor of the insurgent Zhao kingdom. After the fall of the Qin dynasty in 206 BC, Xiang Yu divided the former Qin Empire into the Eighteen Kingdoms. Shen Yang was appointed by Xiang Yu as the King of Henan and granted part of the former Hán kingdom's territory as his domain. In 205 BC, Shen Yang surrendered to Liu Bang and his kingdom became the Henan Commandery of the Hàn Empire.